A whimsical, sweet frosting with the nostalgic flavor of cotton candy—perfect for topping cupcakes, cakes, or cookies with a fun pastel swirl.

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In a large bowl, beat softened butter with a hand mixer or stand mixer until creamy and fluffy, about 2–3 minutes.
Gradually add powdered sugar, 1 cup at a time, beating well after each addition.
Add cotton candy flavoring, a pinch of salt, and 2 tablespoons cream or milk. Beat until smooth and fluffy, adding more cream 1 teaspoon at a time to reach desired consistency.
If using food coloring, divide frosting into two bowls. Tint one bowl pink and the other blue. Swirl together slightly when piping for a two-tone effect.
Use immediately or store in an airtight container in the fridge up to 5 days. Bring to room temperature and re-whip before using.

Use gel food coloring for vibrant colors without thinning the frosting.
Flavor intensity can vary—start with 1/4 tsp cotton candy flavoring and adjust to taste.
Add 1/2 tsp vanilla extract for a creamy depth if desired.
Pipe with a star tip for a carnival-style swirl on cupcakes or cookies.