Preheat oven to 375F. In large bowl combine sugar, brown sugar, butter, peanut butter, vanilla and egg; blend well. Lightly spoon flour into measuring cup; level off and stir in flour. Press into greased 12 or 14 inch pizza pan, forming rim around edge. Bake 7-8 minutes. Sprinkle with marshmallows and chocolate chips. Continue to bake for 5 minutes or until marshmallows are puffy and lightly brown. Cool; cut into wedges. Store in tightly covered container. Serve cooled.
Cajun Country -- New Iberia, Louisiana