Peanut Brittle

Generously grease baking sheet. In 2-quart microwavable bowl, combine sugar and corn syrup; microwave on HIGH 4 minutes. Stir in peanuts using wooden spoon. Continue to cook on HIGH 3 minutes. Stir in butter and vanilla and cook on HIGH 2 to 2-1/2 minutes or until microproof candy thermometer registers 300 deg (or until small amount of mixture separates into hard and brittle threads when dropped into very cold water). Blend in baking soda (mixture will foam up when soda added) and stir until mixture is light and foamy. Pour onto prepared sheet, spreading quickly to edges using back of wooden spoon. As candy cools, stretch into thin sheet using palms of hands. Let cool completely. Break into pieces. Store in airtight container in cool place.