¼ cup Butter or Margarine
1 (250 g) pkg Marshmallows (40)
½ tsp Vanilla Extract (optional)
6 cups Rice Krispies Cereal (i like to use the red and green holiday kind this time of year)

In large sauce pan over low heat, melt butter or margarine, add marshmallows; stir until melted and well blended. Remove from heat. Stir in vanilla. Add cereal, stirring until coated. Using lightly buttered spatula press into buttered 3.5 L (13” x 9”) pan. Cool, cut into squares.

For chewier squares use 50 marshmallows.