Cinnamon Buttercream Frosting Recipe for Cakes and Cupcakes

Add warm spiced flavor to your fall desserts with Cinnamon Buttercream. This smooth, creamy cinnamon frosting is perfect for decorating sugar cookies, cupcakes, small cakes, and more.

Even with unusually warm weather here in PA, fall baking is in full swing in my kitchen. This Cinnamon Buttercream adds a cozy, spiced touch to homemade baked goods and pairs beautifully with autumn flavors.

This cinnamon-spiced buttercream is ultra smooth and creamy, making it suitable for spreading or piping on cookies, cupcakes, and small cakes. It’s essentially my classic small-batch buttercream with a hint of cinnamon for warmth and depth.

It first appeared alongside pumpkin sugar cookies, but it also complements pumpkin pie cupcakes, pumpkin cake, pumpkin poke cake, banana cupcakes, snickerdoodle bars, puff pastry cinnamon rolls, and many small-batch cake and cupcake recipes. If you prefer less seasonal pairings, it works well on any 6-inch cake or small-batch cupcake recipe, including gingerbread cupcakes for a spiced variation.

Cinnamon frosting in jar with cinnamon stick

Ingredients For Cinnamon Buttercream

To make cinnamon buttercream frosting, gather these ingredients:

Powdered sugar: Thickens the frosting so it spreads smoothly or pipes cleanly.
Butter: Adds richness and creaminess—use unsalted and adjust salt to taste.
Ground cinnamon: The key flavor. Fresh cinnamon is best; you can substitute pumpkin pie spice for a more complex spice profile.
Salt: A pinch enhances flavor if you’re using unsalted butter.
Milk or cream: Helps adjust consistency for spreading or piping.
Vanilla extract: Rounds out the flavor so it isn’t one-dimensional.

Close up of cinnamon buttercream frosting

How To Make Cinnamon Frosting

Follow these simple steps to make cinnamon buttercream:

Beat together powdered sugar, softened butter, ground cinnamon, and a pinch of salt until smooth and creamy. Scrape down the bowl to ensure everything is incorporated.
Add milk and vanilla, then beat another minute or so until light and fluffy. Adjust consistency: add a little more milk if the frosting is too thick for spreading, or add more powdered sugar if it’s too thin for piping.

Cinnamon buttercream on pumpkin sugar cookies

Can cinnamon buttercream be made in advance?

Yes. Store cinnamon buttercream in an airtight container in the refrigerator for up to 3 days. Before using, bring it to room temperature and re-whip briefly if it has stiffened.

Do you have to refrigerate buttercream frosting?

Buttercream does not strictly require refrigeration thanks to its high powdered sugar content; it can sit at room temperature for 2–3 days. However, because butter softens and melts when warm, refrigerate cakes in hot weather or if you need to store them longer than a few days. In cooler months you can often leave a frosted cake at room temperature without issue.

Cinnamon Buttercream FAQ

Why is my frosting lumpy?

Lumpy frosting usually means the butter was too cold. Use room-temperature butter for a smooth texture.

Why did my frosting split?

A split frosting often results from uneven ingredient temperatures—too-warm butter combined with cold liquids. To fix it, gently warm the bowl over simmering water and beat until smooth again.

Why is my frosting runny?

Runny frosting can come from overly soft butter, too much liquid, or a very warm kitchen. Thicken it with additional powdered sugar or chill the frosting for 10–15 minutes before using.

More Frosting Recipes

If you enjoyed this cinnamon buttercream, try other small-batch frostings such as chocolate frosting, German chocolate cake frosting, peanut butter frosting, cream cheese frosting, strawberry cream cheese frosting, or coconut frosting.