How to soften your butterMake sure your butter is softened for this recipe. It’ll help with the structural integrity of the frosting. I have a full guide on how to properly soften butter on the blog, but for reference, softened butter is 18C / 65F on a thermometer. Cut it into cubes and let it sit at room temperature for 1-2 hours until it reaches this temperature to until it’s soft enough that when you press on it with your finger, it leaves an indent with some resistance. How Much Fros...