This Vegan Brown Sugar Buttercream Frosting only requires 4 ingredients and 10 minutes to make, and is delicious on layer cakes, cupcakes, and in between sandwich cookies.

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Buttercreams are some of my most-used recipes because they have so many applications! I use them to decorate cakes and cupcakes, fill sandwich cookies, and so much more. I have classic buttercream recipes like Vegan Vanilla Frosting and Vegan Chocolate Frosting, and unique buttercream recipes like Maple Bourbon Buttercream at the ready for all of my baking needs.
And this Vegan Brown Sugar Buttercream Frosting is my new favorite for Fall baking. It complements all of the usual autumn baking flavors like apple, pumpkin, and warm spices. And best of all, it only requires 4 ingredients and 10 minutes to make.
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Why You'll Love This Vegan Brown Sugar Buttercream Frosting Recipe
- This recipe only requires 4 simple ingredients.
- And you only need 20 minutes to make it.
- This Brown Sugar Frosting is completely vegan and gluten-free.
- It is light, fluffy, and great to spread onto cakes and pipe onto cupcakes.
- And most importantly, it is absolutely delicious!
Ingredient Notes

Vegan Butter: Use a vegan butter that comes in stick form. The varieties packaged in tubs are too soft. I really like Country Crock Plant Butter Sticks, but use your favorite.
Powdered Sugar: Powdered sugar sweetens the frosting and adds structure.
Molasses: Molasses is where all of the brown sugar flavor comes from. Be sure to use a mild unsulphured molasses, not blackstrap molasses. I recommend Grandma's brand.
How to make Vegan Brown Sugar Buttercream Frosting

Step 1. In the bowl of a stand mixer fitted with the paddle attachment, cream the vegan butter until completely smooth.

Step 2. Then, add powdered sugar and mix on low until combined.

Step 3. Next, add molasses and vanilla.

Step 4. Mix on medium speed until light and fluffy, about 30 seconds.
Recipe FAQs
To store, scrape the frosting into a container with a tight-fitting lid and keep it in the refrigerator for up to a week.
Or, freeze for up to 2 months.
If the frosting is frozen, transfer it to the refrigerator the day before you plan to use it.
Then, on the day you want to use it, allow it to sit at room temperature for 1-2 hours, or until soft.
Finally, transfer it to the bowl of a stand mixer fitted with the paddle attachment and mix on medium speed until it is light and fluffy, about 30 seconds.
Uses
- Use this buttercream to frost a Vegan Pumpkin Spice Cake or Vegan Carrot Cake.
- Use it to fill sandwich cookies.
- Pipe it onto Vegan Pumpkin Cupcakes.
How Much Frosting Does This Make?
This Vegan Brown Sugar Frosting recipe yields 3 cups of frosting, which is enough for:
- A 3-layer 6" cake.
- 2 dozen cupcakes.
- 2 dozen sandwich cookies.
Top Recipe Tips
Be sure to sift your powdered sugar. This is a crucial step for smooth and fluffy buttercream frosting, so don't skip it!
Stop and scrape the sides of the bowl during each step of the buttercream-making process. This ensures that the buttercream is evenly mixed with no rogue vegan butter chunks. It does take a bit more effort, but the payoff is big!

Looking For More Vegan Buttercream Recipes?
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📖 Recipe

Vegan Brown Sugar Buttercream Frosting
Equipment
- 1 Stand Mixer with Paddle Attachment or Hand Mixer
- 1 Spatula
- 1 Sifter
- Measuring Cups and Spoons
Ingredients
- 16 tablespoon Vegan Butter, room temperature See note
- 4 Cups Powdered Sugar, sifted
- 1 teaspoon Vanilla Extract
- 3 tablespoon Unsulphured Baking Molasses Not blackstrap molasses
Instructions
- Cream vegan butter in the bowl of a stand mixer fitted with the paddle attachment or in a large bowl using a hand mixer.16 Tbsp Vegan Butter, room temperature
- Add the powdered sugar to the mixer and mix on low until combined. Scrape the bowl down with a spatula to be sure everything is evenly incorporated.4 Cups Powdered Sugar, sifted
- Add vanilla and molasses and mix on medium speed until the frosting is light and fluffy. About 1 minute. Stop and scrape the bowl down a couple of times to ensure an evenly fluffy frosting.1 tsp Vanilla Extract, 3 Tbsp Unsulphured Baking Molasses
Notes
Nutrition
Let me know how you liked this recipe and what you used it for frost or fill!









Monica McAndrew says
I made this to top a yellow cake. The cake was made to accompany homemade peach ice cream which is a favorite of my husband and daughter. I added a little ginger to cut the sweetness and curb the molasses flavor.
Megan Calipari says
That sounds like an incredible combination!