1 c. butter
1/2 c. sugar
1/2 c. brown sugar
1 egg
1 tsp. vanilla
1 3/4 c. flour

Combine butter and sugars. Beat until fluffy. Add egg, vanilla and flour. Beat well. Spread dough evenly on ungreased pizza pan. Bake at 375 degrees for 12 minutes. Sprinkle hot cookie with marshmallows, chocolate chips and unsalted peanuts. Bake for 5 minutes more or until marshmallows are light brown. Cool and cut into wedges and serve.