Combine 2 cups a/p flour and 2 tea. Baking soda set aside. In saucepan and med heat combine 2 cups sugar.1 stick of butter, and chopped baking chocolate 4 squares stir til butter is melted; remove from heat. Slowly stir in 4 lightly beaten eggs, and 2-3 tea. vanilla. now stir in flour mixture til well blended chill 1 hr. now mix in 1-3/4 cups of M & M's chill another hour. preheat oven to 350 line a cookie sheet with foil. dust your hands with sugar and roll shilled dough into balls place balls about 2-3 inches apart bake 10 min then remove to rack and cool store in covered container. My grand kids love these. they didn't last long the last time we made them.