1 ½cuproasted peanuts(207 grams) (unsalted or salted)
1tablespoonbutter(14 grams)
1teaspoonbaking soda
1teaspoonvanilla extract
salt for sprinkling(if using unsalted peanuts)
Instructions
Stir to combine sugar and corn syrup in a large, tall microwave-safe bowl. A glass bowl works best. I used an 8-cup glass measuring cup. The mixture should fill no more than ⅓ of the bowl.
Microwave on high for 5 minutes.
While the mixture microwaves, spray a baking sheet with cooking spray or line with parchment. Spray a wooden spoon or spatula for stirring and spreading. Also, make sure the rest of your ingredients are in place.
Add peanuts and butter to the sugar mixture, then stir to combine well.
Microwave bowl again on high for 2-4 minutes, until the mixture reaches a caramel color - a golden brown. This time will vary depending on the power of your microwave. Mine was ready at 3 minutes. Err on the side of too light than too dark.
Add baking soda and vanilla and stir vigorously. The mixture will foam up.
Quickly pour the candy onto the greased sheet. Spread the candy out as evenly as possible. Shake the pan gently to spread it out, so that you don't smooth out any bubbles. Sprinkle with salt if you used unsalted peanuts.
Let cool completely (30-60 minutes) before breaking into pieces. Store in an air-tight container.
Notes
Candy cooks quickly, so prepare all your ingredients before you start. The peanut brittle cooks quickly, and hardens quickly once cooked. Grease your pan and wooden spoon well. If you're having trouble seeing your candy as it microwaves, try turning off your kitchen light so you can see into the microwave more easily.Adapted from King Arthur Flour