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Does peanut butter frosting need to be refrigerated?
It is not necessary to refrigerate this peanut butter frosting. The small amount of milk in the recipe (1/4 cup) is stabilized by the large amount of sugar and considered safe at room temperature for two to three days.
Always refrigerate any cake with a frosting that contains eggs or egg whites. Also be sure to refrigerate any kind of frosting that is whipped-cream based or cream cheese frosting.
Can you freeze homemade peanut butter frosting?
This recipe will make enough to frost a 2-layer cake or 24 cupcakes. If you happen to have any frosting left over, you can freeze it in a tightly covered container for up to one month. Just let the frosting defrost in the refrigerator overnight to re-use.
How to frost a cake:
Make sure your cake layers are completely cool before trying to frost them. Place your first cake layer on your serving platter and slide pieces of parchment or wax paper underneath the edges.
Spread the first layer of frosting on top of the first layer of the cake. Place the second layer of cake on top. Place a big dollop of frosting on top of the cake and spread to the sides. Spread the frosting down the sides of the cake and make sure it’s covered all around. Pull out the pieces of wax paper and discard.
The cake shown here was turned into a Chocolate Peanut Butter Cup Cheesecake Cake. Two layers of chocolate cake with peanut butter cup cheesecake in the middle. The whole cake is covered in peanut butter frosting. And this creamy peanut butter frosting is the perfect frosting for this cake!
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