Bake for 20 min at 350 degrees or 10 minutes for minis.
Macadamia Nut Butter Frosting Instructions
Place the butter and macadamia nut butter into a medium bowl and beat with an electric mixer.
Gradually mix in the sugar, and when the frosting starts to get thick, incorporate milk one tablespoon at a time until all of the sugar is mixed in and the frosting is thick and spreadable.
Beat for at least 3 minutes for it to get good and fluffy.