Chocolate Thumbprint Cookies - cooking recipe

Ingredients

1/2 c. margarine
2/3 c. sugar
1 egg yolk
2 Tbsp. milk
1 tsp. vanilla
1 c. all-purpose flour
1/3 c. Hershey's cocoa
1/4 tsp. salt

Preparation

Cream butter, 2/3 cup sugar, egg yolk and milk.
Add vanilla in small mixer bowl.
Combine flour, cocoa and salt; blend into cream mixture.
Chill dough about 1 hour or until firm enough to handle.
Roll dough into 1-inch balls.
Roll in sugar.
Place on lightly greased cookie sheet.
Bake at 350\u00b0 for 10 to 12 minutes or until set.
Fill the thumbprint after baked with vanilla filling.