Chocolate Fudge
["6-1/2 cups sugar", "1/4 cup cocoa", "1 large can evaporated milk", "1/4 cup light corn syrup", "2 tsp. vanilla", "2 Tbsp. butter", "1 small jar marshmallow creme", "1-1/2 cup pecans"]
["If making peanut butter fudge, omit cocoa and add 1-1/2 cups peanut butter in place of pecans."]
["sugar", "cocoa", "milk", "light corn syrup", "vanilla", "butter", "marshmallow creme", "pecans"]