Microwave Peanut Brittle

1 cup sugar
1/2 cup corn syrup
1 cup salted peanuts
1 tsp. butter
1 tsp. vanilla
1 tsp. soda

Cook sugar and syrup for 4 minutes. Add peanuts, cook for 4 minutes. Add butter and vanilla, cook for 1 1/2 minutes. Fold in 1 teaspoon soda, pour on greased pan. (Small pizza pan is perfect size.)