This classic peanut brittle is light and airy, super buttery and chock full of crunchy peanuts. It’s a simple homemade candy that everyone loves and takes just a few minutes to make.
In a large saucepan over medium heat, add the sugar, corn syrup, and water. Cook until the sugar is dissolved, stirring as needed.
Add the peanuts and stir frequently until the temperature reaches 300 degrees F on a candy thermometer.
Remove from heat and add the butter, salt, baking soda, and vanilla. Stir just until combined then immediately pour as evenly as possible onto a large buttered baking sheet. Do not spread.
Let the mixture cool to room temperature (at least 30 minutes) then break into 2" pieces using your fingers.
Serve immediately or store in a cool place in a covered container. Enjoy!
Notes
Storing instructions: store peanut brittle in an airtight container in a cool, dark place at room temperature for up to 2 weeks, or in the freezer for up to 3 months. To thaw, pull out to room temperature overnight.