Home » Recipes » Peanut Butter Fudge Suggestions? Peanut Butter Fudge - Recipe Cost Cost information for the following is not included. Normally this is because the quantity or ingredient is unknown 4 cups confectioners' (powdered) sugar, sifted NOTE: if using unsalted butter add ¼ tsp. salt to this recipe. Ingredients Per Serving Qty Common Price Price per Serving 1 cup smooth peanut butter 3/8 teaspoon $6.00 per 40 ounces $0.01 1 cup salted butter, cut into pieces 3/8 teaspoon $3.99 per 16 ounces $0.02 1 teaspoon pure vanilla extract 0.01 teaspoon $8.00 per 8 fluid ounces $0.00 Total per Serving $0.03 Total Recipe $3.53 Please Log In or Sign Up to edit Recipe Cost info Email Recipe Cost Send To Message (if any) or Close