5 Ingredient Peanut Brittle without a Candy Thermometer - Sweetphi (2024)

FAQs

How can you tell when peanut brittle is done without a thermometer? ›

Drop some of the peanuts into the cold water again. If they come out hard and look like brittle, then it's ready! Immediately take off the heat and stir in the baking soda mixture we made earlier.

Drop a small amount of the candy mixture with a teaspoon into a small bowl of cold water. Each time you test the candy use a fresh bowl of cold water. If the candy forms a thin thread and does not "ball up", it is in the thread stage or 230°—235°F. This stage is similar to sugar syrup rather than candy.

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.

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.

For the Cold Water Test: 1/2 to 1 teaspoon of the syrup (candy mixture) is dropped from a clean spoon into a small bowl of very cold water (not ice cold). Quickly examine and/or carefully pick up the sugar from the cold water. The firmness of the sugar indicates the highest temperature the syrup reached.

To check your sugar syrup has reached the correct stage without using a sugar thermometer, place a bowl of very cold water next to the hob. Using a clean spoon, carefully take a little of the syrup and drop it into the bowl of cold water. Leave to cool for a moment then pick up the ball of syrup.

To make candy or jelly at home, it's essential to have a thermometer that can process particularly high temperatures. Though a meat thermometer might seem like a convenient substitute, it doesn't have the ability to read and process temperature to the same extent that a candy thermometer does.

For those who feel unsure about committing to a Thermapen, we recommend the ThermoPop^®. Its ±2°F(1°C) accuracy is still tight enough for candy work, and it can also be used to stir through the whole pot for a better understanding of the temperature.

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.

Why is my homemade peanut brittle sticky? ›

Whether it's during the cooking, cooling, or storage process, moisture and humidity can ruin the best batch of brittle in minutes, leaving you with a soggy, sticky mess. This is why eliminating moisture anywhere you can is our top tip on how to store 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.

The combination is believed to have developed in the South during the 1920s, as a snack for blue-collar workers that did not require them to wash their hands. It quickly became popular as a summer snack, especially in rural areas. The snack became an internet trend in 2018.

If your peanut brittle reached 311°F but is a pale milky color, it's likely the candy cooked too quickly. It reached the correct temperature but didn't cook long enough to undergo sufficient Maillard reactions and develop the characteristic brown color and rich, roasted flavor. Next time, cook at a lower temperature.

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.

The inside nuts themselves should be completely soft. If crunchy or crisp, they need to cook longer.