Cashew nut Brittle

Line baking sheet or shallow baking pan with foil. Butter foil and metal spatula, set aside. Combine nuts, sugar, corn syrup and salt in a 6-cup microwave-safe bowl. Cook, uncovered, 4 minutes on High, stir well and cook 4 minutes longer on High. Mixture will be boiling. Stir in butter and vanilla. Microwave on High 2 minutes. Add baking soda and stir until light and foamy. Quickly pour into prepared pan. Spread to about 1/4 inch thickness with spatula. Let cool, then break into pieces. Store in airtight container. Makes 1 pound.