Easy Peanut Butter Fudge Use the brands specified in this recipe for the best results. 1 package Reese's peanut butter morsels 1 can Pillsbury vanilla frosting (Pillsbury works best) Microwave the peanut butter morsels for about 30 seconds in a microwave-proof bowl. Stir. Microwave again for about 15 seconds. Stir. Immediately stir in frosting. You can use this mixture through a cookie press or just drop by teaspoonsful on a sheet of wax paper. This is a soft fudge, but very good!