Preheat oven to 375 degrees.
In large bowl, combine sugar, peanut butter, brown sugar, butter, vanilla and egg.
Blend well.
Lightly spoon flour into measuring cup; level off with spatula.
Stir flour into sugar mixture.
Press dough evenly on bottom of a greased 12 to 14 inch pizza pan, forming a rim along the edge.
Bake 10 minutes.
Sprinkle with marshmallows and chocolate chips.
Continue baking 5 to 8 minutes, or until marshmallows are lightly browned.
Let cool.
Cut into wedges ( it is suggested that you use kitchen scissors sprayed with non stick vegetable spray).
Store in tightly covered container.
Ingredients
1/2 c Sugar
1/2 c Peanut butter
1/2 c Brown sugar
1/2 c Softened butter
1/2 ts Vanilla
1 Egg
1 1/2 c Flour
2 c Minature marshmallows
6 oz Chocolate chips