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Brown sugar is the star of the show in this homemade Brown Sugar Icing with notes of caramel and molasses mingling in this pourable, dreamy frosting.

Brown Sugar Icing
This brown sugar icing (a.k.a. caramel icing) was super easy to whip together, and it turned a regular sheet cake into something memorable. Don’t be intimidated by the need to boil the brown sugar; just stir constantly and everything will turn out great!
This frosting would be tasty over cupcakes, cookies, or even served warm with pancakes or waffles for a Saturday morning feast. If you love the caramelized flavors of brown sugar and butter, then you have got to give this one a try.

This recipe makes enough caramel frosting to cover a cake in a 9×13 pan (approximately 16 servings). If you are baking a smaller cake (e.g. an 8×8 pan), you’ll only need half as much. The cake in the photos here is this Buttermilk Cake and it’s a perfect match for the caramel-inspired brown sugar icing.
You can adjust the ingredient list within the recipe card by simply adjusting the serving amounts to reflect the desired amount. For a half batch, set the servings to 8.

Old Fashioned Caramel Icing
It’s possible that you have fond memories of your grandmother whipping a batch of frosting quite similar to this old fashioned caramel icing. This topping for baked goods always carries a double helping of nostalgia.
I know how that magic is created now with simple ingredients, heat, and time. But, the transformation of ingredients to baked goods still reminds me of the wonder I felt, watching my grandmother produce such incredible goodies.

Buttermilk Icing
You’ll need the following ingredients to make this recipe:
- butter
- light brown sugar
- buttermilk
- vanilla extract
- powdered sugar

While your cake is baking, combine the butter and brown sugar in a saucepan over medium-high heat. Then, whisk to combine and bring to a boil.
Reduce the heat to low before adding the buttermilk. Then, whisk again until combined. Then, remove from the heat entirely. Add the vanilla and start adding the powdered sugar.

Whisk again until everything is nice and smooth. Sometimes, adding in the powdered sugar a bit at a time can help keep things manageable to get the right consistency.
Pour the warm frosting over the cake while it is still warm from the oven. Spread gently with a spatula, as needed to cover the cake.

Homemade Frosting Recipes
Looking for more incredible homemade frosting recipes?
Incredibly moist, soft chocolate cake topped with a fluffy, melt-in-your-mouth Peanut Butter Frosting is a dessert worthy of the most special occasions.

Dulce de Leche Cupcakes are a delicious combination of soft caramel cake topped with creamy dulce de leche frosting to satisfy all your sweet caramel cravings.
Perfect for pineapple and coconut lovers alike, Pineapple Cake with Coconut Frosting is full of pineapple flavor and just a hint of coconut, layered with creamy coconut cream cheese frosting and sprinkled with toasted coconut.

While a good fudgy brownie is hard to beat, Strawberry Frosted Brownies are a fun twist on the classic dessert. And, you’ve got to try fluffy Key Lime Cupcakes with a graham cracker crust, topped with smooth lime cream cheese frosting.
These old-fashioned Pumpkin Cookies with Cream Cheese Frosting are big and soft, just like your favorite bakery-style pumpkin cookies. This is a classic fall cookie recipe.

This fantastic whipped Cocoa Buttercream Frosting recipe requires just 5 ingredients. With barely ten minutes of effort, you’ll have enough rich, fluffy chocolate frosting to top a dozen cupcakes.
Fluffy Blackberry Buttercream Frosting piped high over a soft, vanilla cupcake tastes like spring has arrived. The sweet and slightly tangy frosting perfectly complements the vanilla base, creating a light and colorful combination.


Brown Sugar Icing
Ingredients
- ⅓ cup butter
- 1 cup light brown sugar
- ⅓ cup buttermilk
- 1 teaspoon vanilla extract
- 1⅔ cups powdered sugar
Instructions
- While your cake is baking, combine the butter and brown sugar in a saucepan over medium-high heat. Whisk to combine and bring to a boil. Then, reduce to low heat and add the buttermilk. Whisk again until combined.
- Remove from the heat and add the vanilla and powdered sugar. Whisk again until smooth. Pour the warm frosting over the cake while the cake is still warm from the oven. Spread gently with a spatula, as needed, to cover the cake.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.















If I could give this stuff 10 stars, I would! My Mom used to make this for her no egg chocolate cake (popular back in the 50’s) and us kids ate the frosting off first!! This recipe is very close to hers, if not exact. Thank you for sharing this. I much prefer icing to all that buttercream crap they are always boasting about these days. Buttercream frosting feels greasy to me, so I prefer thinner, runnier icings.
I’m so happy to hear that you love the icing and that it brings back happy memories for you!