- Ready In:
- Mix baking soda, 1-teaspoon water and vanilla and set aside.
- Mix sugar, 1/2-cup water and the corn syrup in a copper constant stir kettle.
- Cook over medium heat until 240 degrees on a candy thermometer.
- Add butter and cashews.
- Cook until 300 degrees on candy thermometer.
- Immediately turn off the heat.
- Quickly stir in baking soda mixture until light and foamy.
- Pour onto a half sheet pan, roll with a marble rolling pin until about ¼ inch thick.
- Cool completely: at least 1 hour.
- Break into pieces and store in a covered container.
- This makes about 3.25 lbs of brittle.