Chocolate chip and peanut brownie

Preheat oven to 250 degress f. Grease and line the base of a pan. Place 2 cups chocolate chipc and 1/2 cup butter in a pan. Stir in 2 eggs , lightly beaten, 1/2 cup sugar, and 1 tsp vanilla extract. Fold in 1 cup flour and 1 cup peanuts. Spoon mixture into prepared pan. Bake for 20 minutes, until sides shrink slightly from pan. Cool in pan before cutting into squares.