Peanut Butter Frosting

In a a stand mixer fitted with the paddle attachment (or a large bowl with a hand mixer), beat the butter until smooth and creamy, about 1-2 minutes.

Add the peanut butter and continue beating until fully incorporated and lightened in texture, about 1-2 minutes.

Add the sugar and kosher salt in 2-3 additions, mixing on low speed until combined, then increase to medium and beat until smooth.

Add the vanilla extract, then drizzle in the heavy cream 1 tablespoon at a time, beating between additions, until the frosting is soft, fluffy, and spreadable. Use immediately or cover and refrigerate until ready to use, bringing back to room temperature and re-whipping briefly before frosting.