Whisk your softened butter and powdered sugar together in a stand mixer or with a hand mixer. Start on low speed for about a minute to keep things neat, then boost it to medium speed for one more minute until the mixture begins to look light and fluffy. Give the bowl a quick scrape down.
Pour in your pure extracts, milk, and optional green coloring. Whip everything on medium-high speed for 1 to 2 minutes until you achieve a wonderfully smooth, cloud-like texture.
Check your consistency! If you'd like a lighter, spreadable cream, simply mix in a teaspoon of milk at a time. If you prefer a firmer texture for piping, fold in a little extra powdered sugar a quarter-cup at a time.
Swirl or pipe this refreshing frosting over your favorite wholesome cupcakes or cakes and enjoy immediately!
Notes
Nutrition per serving: Calories: 258 kcal | Total Carbs: 30g | Net Carbs: 30g | Fats: 16g | Protein: 0.2g