1 ½ teaspoons pure peppermint extract (not mint extract)
4–6 tablespoons heavy cream
Optional: green food coloring (1–2 drops for a soft minty hue)
Instructions
In a large bowl or the bowl of a stand mixer, beat the softened butter on medium speed for 2–3 minutes until it’s light and fluffy.
Slowly add the powdered sugar, about 1 cup at a time, mixing on low. Once all the sugar is added, beat on medium-high speed for 1–2 minutes.
Add the peppermint extract and 4 tablespoons of heavy cream. Beat on medium-high for another 2–3 minutes until smooth and whipped. Taste and adjust extract to your liking—peppermint can be strong!
If using, add a drop or two of green food coloring and mix until evenly tinted. For a thinner frosting, add an extra tablespoon of cream. For a fluffier texture, whip on high for 2–3 more minutes.
Use immediately or chill in an airtight container. Bring to room temp and re-whip before using.