Line an 8x8 baking pan with parchment paper or spray with non-stick cooking spray.

Place the white chocolate in a medium, microwave safe bowl. Melt the chocolate in the microwave by cooking in 30 second intervals, stirring after each time. Continue to cook 30 seconds at a time until chocolate is melted and smooth.

Once chocolate is all melted, stir in frosting immediately and mix well.

Pour mixture into baking pan and spread out evenly.

If using decorations, sprinkle on top and gently press into fudge with a spoon or spatula.

Place fudge in the refrigerator for at least 30 minutes to set.

Cut into squares and serve.