Peanut Brittle 1

Preparation : In large pyrex measuring cup stir corn syrup and sugar. Microwave on high 4 minutes. Add peanuts. Cook 4 minutes on medium. Have ready buttered cookie sheet. Remove peanut brittle from oven and add quickly the butter, vanilla and salt. Cook on high for 1 minute 15 seconds then add baking soda put through sieve. Stir just enough to blend. Work fast mixture will foam. Pour immediately onto buttered pan, spreading 1/4 inch thick. Cool 30 minutes and crack.