Chocolate Peanut Butter Cups
["1 (8 oz.) Hershey milk chocolate bar", "1 1/2 c. peanut butter", "4 Tbsp. butter or margarine (optional)"]
["In the top of a double boiler over hot, not boiling water, melt the chocolate with half of the peanut butter.", "Stir until smooth.", "For extra creaminess, add the butter or margarine.", "Put remaining half of peanut butter in the top of another double boiler over simmering water.", "Melt the peanut butter until it has a pouring consistency."]
["milk chocolate", "peanut butter", "butter"]