Microwave Peanut Brittle

I made this several years ago, and then had to go in search of this recipe as I'm putting together treats for our neighbors.
Photos to follow

1 c. white sugar
1/2 c. light corn syrup
1 c. salted spanish peanuts
1 t. butter
1 t. vanilla
1 t. baking soda

Butter a cookie sheet (or line pan with foil and spray with non-stick spray)
Combine sugar and corn syrup in a 2 quart glass bowl and microwave on high for 3.5 minutes.
Stir in peanuts and microwave for 3 minutes.
Stir in butter and vanilla, and microwave for 1.5 minutes.

Stir in baking soda, and pour onto cookie sheet, and spread thin.
Cool completely, then break into pieces and serve.