1/2 c. butter
4 oz. unsweetened chocolate
1/2 c. sugar
1 tsp. vanilla
3 eggs
1 c. flour
Walnut halves

Stir butter and chocolate over low heat until melted. Remove from heat and stir in sugar and vanilla. Add eggs one at a time, beating well after each egg. Stir in flour. Spoon into mini muffin tins, top with walnut halves. Bake at 325 degrees for 20 minutes.