Chocolate Crinkles
["1/2 c. butter or margarine", "4 (4 oz.) squares unsweetened chocolate", "2 c. flour", "2 tsp. baking powder", "1/2 tsp. salt", "2 c. sugar", "4 large eggs", "1 1/2 tsp. vanilla", "1 c. confectioners sugar"]
["Melt butter and chocolate in double boiler over hot, not boiling water until smooth."]
["butter", "chocolate", "flour", "baking powder", "salt", "sugar", "eggs", "vanilla", "confectioners sugar"]