By Tessie2
1 cup [200 g] sugar
1/2 cup [125 mL] light corn syrup
1/8 teaspoon [0.5 mL] salt [optional]
1 teaspoon [5 g] butter
1 1/2 cups [375 mL] cashews
1 teaspoon [5 mL] vanilla extract
1 teaspoon [5 mL] baking soda
Stir together sugar, corn syrup and, if desired, salt into a 1 1/2-quart [6-cup / 1.5-L] microwave-safe container.
Microwave for 4 minutes at 'HIGH'; stir, microwave for 4 minutes more.
Stir in butter, cashews and vanilla.
Microwave for 2 minutes longer at 'HIGH'.
Add baking soda and quickly stir until light and foamy.
Immediately pour onto a lightly greased baking sheet; spread to 1/4-inch [1-cm] thickness.
Leave to cool; break-up mixture into pieces.
Store into an airtight container.