1 (10 oz.) pkg. reg. marshmallows
1/4 c. butter
1/3 c. peanut butter
7 1/2 c. or 1 (10 oz.) pkg. Kellogg's Frosted Flakes

In a 4 quart microwavable bowl, melt marshmallows and butter on High 3 minutes, stirring halfway through cooking. Stir in peanut butter until mixture is smooth. Add Kellogg's Frosted Flakes, stirring until well coated. Using a buttered spatula or waxed paper, press mixture into a lightly greased 13 x 9 x 2 inch pan. Cut into 1 1/2 x 2 inch bars. Makes 32 bars.