Luscious American Buttercream
- Rachel Mann
- Apr 2, 2024
- 4 min read
Updated: May 28
We all love the classic American Buttercream, easy, simple to put together, no heating of sugar and egg whites...but that overpowering sweetness is not for everyone. After some research on contrasting ingredients, I found simple ways to make a smooth, creamy, and not-too-sweet American Buttercream.

What Makes American Buttercream Different?
American Buttercream, possibly the most commonly used type of Buttercream is known for its easy mixing process and crusting capabilities when exposed to air, which is great for just about everything! While American Buttercream (We will call it AB) is made only from powdered sugar, butter, and a few tbsp of heavy cream, milk, or water, this usually 2:1 ratio buttercream is the sweetest of the options.
However what if I told you this recipe is not only delicious but not as sweet?
Tools You'll Need
Here are some kitchen tools I like to suggest for making my sugar cookies. These are the exact products I use every time:
Electric Mixer or a Bowl and Silicone Spatula
Clear Vanilla for a whiter buttercream
Purple Food Coloring to remove any yellow tones
Recipe Questions
How do I fix buttercream that split or curdled?
This normally happens when your butter was too cold (not room temperature) before whipping, or your mixer warmed up the butter too much while you were adding the remaining ingredients. Simply add half to a double broiler or microwave, melt and add back in while your mixer is on low and then whip it on high for 5 minutes. If the buttercream is too thin afterwards, place in the fridge and once completely solid, take it out, let it come to room temperature and re-mix on medium- medium high.
My buttercream is too thick?
You may simply add a teaspoon at a time of your liquid of choice - water, milk or cream until you reach your desired consistency.
How do I fix my butter that warmed up while whisking?
If your mixer warmed up your butter too much and it is starting to get thin or is no longer room temperature, let your butter sit in the mixing bowl for 30 - 60 minutes to let it come back to room temperature a bit before adding the remaining ingredients.
Can I half this recipe?
Absolutely! You may half it, or make the full batch and freeze what you don’t end up using for future use!
Prep Time: 30 minutes
Servings: 6-7 cups
Ingredients
3 cups (6 sticks) unsalted butter (room temperature)
5 cups powdered sugar
1 tsp salt
1 tbsp clear vanilla
2 tbsp warm water or cream (see notes)
1 1/2 tsp lemon juice
Blue or Purple food coloring
Directions
Using a whisk attachment, beat your room-temperature butter on medium-high speed for 5–10 minutes, or until it becomes very light and fluffy. The butter should turn white before moving to the next step—this is key for the best texture.
With the mixer on low, gradually add about 1 cup of powdered sugar at a time. Mix just until each addition is fully incorporated; avoid over mixing at this stage.
Add in the vanilla extract, lemon juice, and salt. Mix briefly to combine.
Increase the mixer to medium speed. I like to keep it at Speed 4. Slowly drizzle in your warm water or cream while it whips.
At this point, this buttercream is great for crumb coating or stacking. If you’re looking for a smoother finish:
• Melt about one-third of the buttercream in a heat-safe bowl using the microwave or a double boiler. Once fully melted, pour it back into the remaining buttercream and mix to combine.
Switch to the paddle attachment and let your mixer run on low or stir speed for 10–15 minutes. This will remove air bubbles and give you a silky, spreadable texture.
(Optional) Transfer the buttercream to a container or wrap it tightly in cling wrap. Freeze for 48 hours or more. The night before using, let it thaw at room temperature. Then place it back in the mixing bowl and beat on low with the paddle attachment for about 5 minutes until smooth.

Recipe Notes
Salt and Lemon Juice
Salt is one of the key factors in taming the sweetness down in your buttercream, but I will say, to add it to your specific taste. I like to add up to 1 1/2 tsp of salt for 3 cups of butter.
Lemon juice is another to-taste ingredient, however, I would not recommend adding any more than 2 tsp per recipe, or else you may end up making lemon buttercream instead. I normally do 1 tsp. If you are unsure, start with 1/4 tsp and work your way up. The acidity of lemon juice counters the sweetness of the powdered sugar, which in turn leaves a less sweet buttercream.
Using High-Ratio Shortening
High-ratio shortening is optional but is great to have to add stability to your buttercream, in turn allowing you to make cupcakes or cakes to withstand hotter temperatures. Do not use Crisco or liquid shortening. Crisco makes it greasy and liquid, will change the consistency.
Room Temperature Butter
Always, always, always start with room-temperature butter! I take mine out the night before making it to ensure the butter is completely at room temperature. Melting your butter in the microwave using it while it is still slightly cold will cause a fluctuation and overall can produce a very thin, curdled, or split buttercream.
Adding Warm Water
Adding warm water or even cream will help dissolve some of the powdered sugar to remove some of the grainy texture, this won't remove it entirely, but it does help.
Freezing
This is a hack that helps create a smooth and creamy buttercream without the bubbles! Freeze for a minimum of 48 hours and up to 3 months.
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Hello thanks for sharing your recipe! How much of the purple food coloring would you use to get it white?
Does this recipe work with plant based butter?
I'm going to make your lemon box mix cupcakes with this icing. Would I just sub lemon extract or emulsion in place of the vanilla or still use the vanilla? Thank you so much for sharing your recipes!
I always have the same issue with a slight grainy texture to the buttercream. Does yours have this issue?
Can you recommend brands of high ratio shortening please