1/4 cup margarine
1 cup unbleached all purpose flour
225 grams cream cheese, softened
1 teaspoon vanilla extract
3/4 cup M&M's candies
1/3 cup packed brown sugar
1/2 cup chopped walnuts
1/4 cup granulated sugar
1 large egg

Beat margarine and brown sugar until light and fluffy. Add flour and walnuts, mix well. Reserve 1/2 cup crumb mixture; press remaining crumb mixture into bottom of 8 inch square pan. Bake at 350 degrees F for 10 minutes.

Combine cream cheese, granulated sugar and vanilla extract, mixing at medium speed on electric mixer until well blended. Add egg, mix well.

Layer 1/2 cup candy over crust; top with cream cheese mixture. Combine remaining candy, chopped, and reserved crumb mixture; mix well. Sprinkle crumb mixture over cream cheese mixture. Bake at 350 degrees F for 20 minutes. Cool and cut in to 16 equal squares.