3cupspowdered sugarup to 4 cups for a stiffer frosting
1tspvanilla extractoptional
¼-½tspsalt
1-2tbspmilk or creamup to ¼ cup if desired
Instructions
Add the softened butter and peanut butter to the bowl of a standing mixer or large bowl with a hand held mixer.
Mix on medium to medium high for 2-3 minutes, until the butter and peanut butter is combined. Mixing the butter/peanut butter so long make it really light and fluffy.
Add the powdered sugar, ¼ tsp salt, and vanilla and mix on low for a minute until it incorporates. Mixing on low makes sure the powdered sugar doesn’t spill out and get everywhere.
Once it’s incorporated, mix on medium high for another 3-4 minutes until it is fluffy again.
At this point, gauge the consistency and flavor. If you want it thinner you can add a tablespoon or two of milk or cream. You can also add a bit more salt if you think it needs it. Remix for another minute until combined.
Notes
This recipe makes about 3-3.5 cups of frosting.
If using salted butter, add only up to 1/4 tsp salt.
For a smooth frosting, use regular smooth peanut butter instead of the natural kind you stir, or crunchy peanut butter.
Make sure your butter and peanut butter are both at room temperature so the combine easily.
If your powdered sugar is very stiff or hard, put it through a sifter so there are no lumps in your buttercream.
Test to gauge the consistency and flavor. If the frosting is too thick you can add a tablespoon or two of heavy cream or milk. If it’s too thin, you can add a few more tablespoons of powdered sugar. You can also add more salt if you think the frosting needs it.
If you’re looking for a stiffer frosting, you can add up to another cup of powdered sugar.
This frosting will last up to a week in the fridge or up to 3 months in the freezer, making sure to store tightly in an airtight container.