Truffles(From A 1930 Chocolate Lovers Hershey Cookbook)  
["1/2 c. butter, softened", "1/4 c. heavy cream (canned milk is good)", "3 c. to 1 box 4x powdered sugar", "1/2 c. Hershey's cocoa", "1 1/2 tsp. vanilla or rum flavoring (if you like)"]
["Cream butter.", "Combine 2 cups of the sugar and cocoa.", "Stir into butter.", "Add flavoring to milk and beat into the creamed mixture.", "Add enough sugar to make a manageable dough.", "If dough is too soft, may be placed in refrigerator to chill."]
["butter", "heavy cream", "sugar", "cocoa", "vanilla"]