Old-Fashioned Peanut Brittle (2024)

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Old-Fashioned Peanut Brittle (1)

My mother has a large square of rose-colored marble for making such as brittle and butterscotch on her kitchen counter. Most likely Etowah marble from North Georgia, it has been in the family for years and originally belonged to my great-great-grandmother, Victoria Virginia Wingate. The sheen of the marble is a dull from age – or perhaps the amount of butter that it has absorbed in the past century — and it’s still absolutely beautiful. Mama has used it for as long as I can remember to make old-fashioned peanut brittle, as did my grandmother, before her and her grandmother, as well. I love the history in that this simple kitchen tool has brought so love and joy into my family’s home for generations.

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Why is Marble Used for Candy-Making?

Natural stone such as marble is an ideal work surface for producing candy such as peanut brittle because it retains heat during the cooling process. Stone has excellent insulating properties and when making candy, the cooling phase is critical. Cooling down too quickly can prevent the candy from becoming hard. When candy cools slowly on a stone slab, more crystals have a chance to form. With a higher number of micro-crystals, the sugar has more sites on which to crystallize, and so crystallization ultimately happens faster. Having said all of that — if you don’t have a piece of stone, you can used a buttered rimmed baking sheet or one lined with a nonstick silicone baking sheet.

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Holiday Traditions

Peanut brittle is as much a part of holidays as the Christmas tree in our family. In fact, we often decorate the tree the day after Thanksgiving and make peanut brittle, too. It was my grandfather’s favorite holiday treat. The Southern sweet tooth reigns in supreme glory during the holidays. Divinity, fudge, mints, melt-aways, cookies, cakes, and pies all have their place, but peanut brittle is what my family loves most.

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Sweet Memories

During the holidays on an afternoon when the weather is clear, Mama pulls out her ancient candy thermometer. (It has to be a sunny day as sugar is hygroscopic, which means it attracts water. This also means making brittle, candy, divinity, and meringues can be notoriously difficult when it rains.)

The candy thermometer was originally my grandmother’s. It’s from the 1950s and is still stored in its original box, which is tattered and held together with tape. She then butters the marble slab, measures out her ingredients, and makes peanut brittle in a large heavy-bottomed saucepan. The aroma of sugar cooking, nuts toasting, and warm butter fills the air. Once the candy hits the right temperature she pours it out and flattens the molten mass with a buttered spatula.

If you don’t have a candy thermometer, you can use a reliable heatproof thermometer that goes up to 350F or so. Or, you can also do dribble some of the cold sugar into ice water. The sugar will react appropriately for the stage it has reached.

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Stages of Cooking Sugar

That last sentence terrified a lot of people. Folks are terrified of making brittle, candy thermometer or not. Other than simply avoid getting burned, the key to sugar work is temperature. The final texture of candy depends on the sugar concentration. As the syrup boils the water evaporates, the sugar concentration increases, and the boiling point rises. A given temperature corresponds to a particular sugar concentration.

The stage refers to the reaction of spoonful of sugar syrup that has been drizzled into ice cold water. Peanut brittle has to reach the hard-ball stage, which means that strands of sugar break easily and feel dry, not sticky. To understand, let’s walk through the stages of cooking sugar.

Thread Stage – 230°F to 235°F

At this relatively low temperature, there is still a lot of water left in the syrup. When you drop a little of this syrup into cold water to cool, it forms a liquid thread that will not ball up, but simply dissolves in the water. Cooking sugar to this stage simply produces syrup, not candy.

Soft-Ball Stage – 232°F to 240°F

At this temperature, sugar syrup dropped into cold water will form a soft, flexible ball. Fudge, classic pralines, and fondant are made by cooking sugar to the soft-ball stage.

Firm-Ball Stage – 242°F to 250°F

Drizzle a little of this syrup in cold water and it will form a firm ball, that will retain it’s shape when you take it out of the water, but remains pliable and will flatten when squeezed between your fingers. Caramels are cooked to the firm-ball stage.

Hard-Ball Stage – 250°F to 268°F

At this stage, the syrup will form thick threads as it drips from the spoon. Very little water remains and the sugar concentration is rather high. The syrup drizzled into cold water will form a hard ball. If you take the ball out of the water, it won’t flatten, but you can still change its shape by squashing it. Nut brittles, nougat, marshmallows, and divinity are cooked to the hard-ball stage.

Soft-Crack Stage – 270°F to 290°F

As the syrup reached soft-crack stage, the bubbles on top will become smaller and closer together. When you drop a bit of this syrup into cold water, it will solidify into threads that, when removed from the water, are flexible, not brittle. They will bend slightly before cracking and breaking. Butterscotch is cooked to the soft-crack stage.

Hard-Crack Stage – 300°F to 310°F

The hard-crack stage is the highest temperature before caramel. If you spoon a little of the molten syrup in cold water and it will form hard, brittle threads that crack and break when bent. Toffee and lollipops are cooked to the hard-crack stage.

Caramel – 330° – 350° F

At the lower end of the temperature range of caramel all the water has boiled away and the pure sugar is liquid and light amber in color. As the temperature rises the sugar becomes richer and darker. Caramelized sugar is used for spun sugar and can also be used to give a candy coating to nuts. Above 350° caramel tastes burnt and bitter.

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Hard Candy Christmas

I’ve always liked the glasslike thin threads of candy that are created as the spoon is pulled away from the brittle. They dissolve instantly when placed on the tongue, whispers of sweetness. While the candy is cooling we line a collection of tins with waxed paper. Some of the tins are new and somewhat stylish with Christmas motifs, some are years older, the familiar blue store-bought butter cookie tins, dinged and bent. The newer tins are used for holiday gift-giving and the well-used ones stay home. Once the candy is cooled completely she lifts it with a spatula and cracks it into individual pieces. As we nibble the bits and pieces of brittle, the antique marble slab is then wiped clean with warm soapy water and carefully dried. It’s set aside once again. We laugh and giggle, hang the ornaments, and yes, it’s Christmas.

Thanks for reading! I hope you and yours have a beautiful, safe holiday season.

Bon Appétit Y’all!
Virginia Willis

PS. Want a candy recipe that doesn’t involve lava-like sugar? Check out my Easy Peppermint Fudge!

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Old-Fashioned Peanut Brittle (8)

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Peanut Brittle Recipe

Prep Time10 minutes mins

Cook Time12 minutes mins

Cooling15 minutes mins

Total Time37 minutes mins

Course: candy, Dessert

Cuisine: American

Keyword: brittle, candy, christmas, holiday

Servings: 2 pounds

Calories:

Author: Virginia Willis

Equipment

  • candy thermometer

Ingredients

  • 2 cups sugar
  • 1 cup light corn syrup
  • ½ cup cold water, plus more for brushing the pan
  • Pinch of fine sea salt
  • 3 cups unsalted raw peanuts
  • 1 tablespoon unsalted butter, at room temperature, plus more for the marble or baking sheet
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon baking soda

Instructions

  • Butter a rimmed baking sheet or marble slab, or line a rimmed baking sheet with a silicone baking liner.

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  • In a heavy saucepan, combine the sugar, corn syrup, water, and salt and bring to a boil over medium-high heat, stirring until sugar has dissolved. Continue cooking, without stirring, until the mixture reaches the hard-ball stage on a candy thermometer (250°F to 268°F) swirling the pan occasionally; wash down the sides of the pan with a pastry brush dipped in water to prevent crystals from forming. Depending on your pan and burner strength, this could take 8 to 15 minutes. Do not walk away! Stir in the nuts and continue cooking, stirring frequently to prevent the nuts from burning, until the mixture is light amber and the nuts are golden brown, about 5 minutes.

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  • Remove the pan from the heat; stir in the remaining 1 tablespoon butter and the vanilla. Carefully stir in the baking soda; the mixture will foam up in the pan. As soon as it is combined, pour it onto the prepared baking sheet or marble slab.

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  • Using an oiled offset spatula, quickly spread into an even layer about ½ inch thick. Slip the oiled spatula under the hot candy to loosen the edges and bottom. Let stand until completely cool, 45 to 60 minutes.

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  • Break the brittle into large pieces, and layer between pieces of waxed paper in an airtight container. Store at room temperature up to 1 month.

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Notes

Chef it Up: Chocolate-Dipped Nut Brittle Recipe

Line a baking sheet with waxed paper. Combine 6 ounces semisweet chocolate chips and 1 tablespoon vegetable shortening, in a microwave-safe bowl. Microwave, uncovered, on medium-high for about 1 minute. Remove and stir with a rubber spatula. Some chips may not have melted, so microwave again in 10-second intervals, stirring after each interval, until the chocolate and shortening are smooth and just melted. Let cool slightly. Dip the cooled brittle in the melted chocolate and shake off the excess. Sprinkle with additional chopped nuts, if desired. Place on the prepared baking sheet. Refrigerate until set.

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Please note that this post may contain affiliate links.

Good and Good for You with Virginia Willis is a lifestyle brand that shares health and wellness content through digital channels, events, and print media. For more information visit virginiawillis.com

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Please be nice. Unauthorized use or duplication is prohibited. All photos and content are copyright-protected. If you wish to republish this recipe, please link back to this recipe onvirginiawillis.com. Thanks so much!

Old-Fashioned Peanut Brittle (15)

Old-Fashioned Peanut Brittle (2024)

FAQs

Why put baking soda in peanut brittle? ›

Baking soda is also very important at this stage since it reacts to the heat, creating carbon dioxide that aerates the caramel, enabling it to snap when someone bites into it rather than requiring them to gnaw at it until it breaks or pulls apart.

Why didn't my peanut brittle get hard? ›

The main reason why peanut brittle doesn't get hard and have the crunch we expect is because the sugar was not cooked long enough. The sugar needs to be cooked to what is called the hard crack stage, 300ºF.

How do you fix failed peanut brittle? ›

Why Is My Peanut Brittle Chewy / Sticky / Didn't Harden?
  1. Break up the brittle and place it in a glass, microwave-safe bowl. Heat on HIGH heat 1-2 minutes until soft and semi-melted. ...
  2. Transfer the semi-melted brittle to a a clean saucepan. ...
  3. Immediately remove from the heat and add additional 1/2 teaspoon of baking soda.
Nov 18, 2022

How to keep peanut brittle from getting sticky? ›

#2 - Separate your brittle

Next, add a second layer of wax paper and a second layer of brittle. Repeat the process until all your brittle is properly stored. The reason for doing this is that brittle is mostly sugar. And, when moisture comes into contact with sugar, sugar becomes seriously sticky.

Can you overcook peanut brittle? ›

If you overcook the brittle, it could be bitter or burnt. If you undercook it, the brittle won't properly set and the end result will be sticky.

Should you refrigerate peanut brittle? ›

To store: Store peanut brittle (once it's completely cooled) in an airtight container at room temperature. Do not refrigerate as the moisture from the fridge will cause the brittle to soften. Store for 6-8 weeks. To freeze: Peanut brittle can be frozen and stored up to 3 months.

Why is my peanut brittle gooey? ›

What's important to know is that the corn syrup controls the grain of the brittle so adding too little and you have a grainy textured brittle, while adding too much will result in a stringy and sticky brittle.

Can you use parchment paper when making peanut brittle? ›

You'll also want to prepare a baking sheet, with either a silicone mat or parchment paper. The mat/paper will help ensure the peanut brittle doesn't stick directly to pan once it has cooled.

Why did my peanut brittle crystallize? ›

When candy cools slowly on a stone slab, more crystals have a chance to form. With a higher number of micro-crystals, the sugar has more sites on which to crystallize, and so crystallization ultimately happens faster.

Why does my peanut brittle have bubbles? ›

As the sugar is cooking and begins turning amber in color it accumulates small amounts of acid, and that acid reacts chemically with the alkaline baking soda releasing about a zillion minuscule bubbles of CO2 that get trapped, making the sugar porous and, well… brittle.

Is peanut brittle bad for your teeth? ›

After it's made, peanut brittle turns into a hard, sticky candy that can do some serious damage to teeth. If you do eat peanut brittle this holiday season, make sure to thoroughly rinse your mouth with cool water afterwards to remove as much food debris as possible.

Can peanut brittle go bad? ›

How Long Does Peanut Brittle Last? Properly stored (in an airtight container at room temperature), peanut brittle will last one to two months.

What is the purpose of adding baking soda, butter, and calamansi juice during peanut brittle processing? ›

Why do you put baking soda in peanut brittle? In short: the alkaline of the baking soda reacts with the acids of the sugar to creates lots of CO2 bubbles. This interrupts the crystalline structure, making it more delicate and easily cracked…and thus more “brittle”.

What does baking soda do in candy making? ›

The secret is in the baking soda. As the sugar is cooking and begins turning amber in color it accumulates small amounts of acid, and that acid reacts chemically with the alkaline baking soda releasing about a zillion minuscule bubbles of CO2 that get trapped, making the sugar porous and, well… brittle.

What is the interfering agent in peanut brittle? ›

Examples of interfering agents include corn syrup and cream of tartar. A key step in making brittle is heating the syrup to the proper temperature.

What is the purpose of adding baking soda to Duff? ›

In summary, the purpose of adding baking soda to dough is to generate carbon dioxide gas, which causes the dough to rise and become light and fluffy. This is important because it makes the dough easier to work with and results in a better texture and flavor in the final baked product.

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