Table of contents
- Chocolate Fudge Buttercream Ingredients
- How to Soften Butter Quickly
- How to Make the Best Chocolate Buttercream Frosting
- How to Get Rid of Air Bubbles in Frosting
- Troubleshooting and FAQ
- Ways to Use Chocolate Fudge Frosting
- Chocolate Frosting Video Tutorial
This chocolate fudge buttercream is one of my go-to frostings for cakes and cupcakes. It appears in my cookbook Simple Small-Batch Baking and is featured on the cover, piped atop the death by chocolate cupcakes. The frosting is rich and fudgy because it uses melted chocolate rather than cocoa powder, and it comes together quickly with just six ingredients.
Because this is a small-batch recipe, it yields the perfect amount for 6–8 cupcakes or an 8×8-inch snack cake. It’s easy to scale if you need more, and the technique is forgiving so long as you manage butter temperature and mix carefully.
Chocolate Fudge Buttercream Ingredients
- Unsalted Butter: Use cool, room-temperature butter. If it’s too cold the frosting will be lumpy; if too warm it will be greasy and won’t hold shape. Aim for about 67°F (19°C), where your finger makes an indent but doesn’t sink through.
- Dark Chocolate: Melted chocolate gives this buttercream its fudgy texture. I prefer 70% cacao dark chocolate for depth, but semisweet also works. Choose good-quality chocolate with minimal ingredients.
- Powdered Sugar: Powdered sugar sweetens and helps bind the frosting.
- Vanilla Bean Paste: Vanilla bean paste adds a concentrated, aromatic vanilla flavor. If you don’t have it, use an equal amount of vanilla extract.
- Milk: One tablespoon of milk smooths and softens the frosting. Swap for a dairy-free milk if needed.
- Salt: A pinch balances the sweetness — don’t skip it.
Tip: Proper butter temperature is crucial. Too cold = lumps; too warm = runny frosting. Aim for soft but still cool butter.
How to Soften Butter Quickly
Softened, room-temperature butter is the foundation of a smooth chocolate frosting. Ideally let butter sit at room temperature for an hour or two. If you forgot to take it out of the fridge, use one of these quick methods:
- Pour hot water into a glass that fits over the butter. After a few minutes, discard the water and invert the warm glass over the butter. The residual heat will soften it in 10–15 minutes.
- Cut the butter into small cubes and spread them on a plate. Smaller pieces warm faster; allow 25–30 minutes at room temperature.
How to Make the Best Chocolate Buttercream Frosting
Summary of method: Melt and cool the chocolate slightly. Beat softened butter until creamy, add powdered sugar, vanilla, milk, and salt, and beat until smooth. Add the melted chocolate and beat on high for 1–2 minutes until the frosting is light and fully combined. Adjust consistency with extra powdered sugar (to thicken) or a bit more milk (to loosen).
How to Get Rid of Air Bubbles in Frosting
Over-whipping can introduce tiny air bubbles that mar the smooth appearance. To remove them, stop using the mixer and stir the frosting by hand with a wooden spoon or silicone spatula. Press and scrape the frosting against the bowl sides to pop trapped air. After a couple of minutes of manual stirring, the buttercream should become velvety and smooth again.
Troubleshooting and FAQ
How can I make my chocolate frosting thicker?
Chill the frosting briefly and then rebeat it to thicken. You can also add 1–2 tablespoons of powdered sugar at a time until you reach the desired texture (note: this increases sweetness). For a less sweet thickener, add small amounts of cornstarch, starting with 1/2 tablespoon and increasing sparingly.
How should I store leftover frosting?
Store leftover frosting in an airtight container in the refrigerator for up to 5 days or freeze up to 3 months. Thaw in the refrigerator and rebeat briefly to restore a creamy texture.
Ways to Use Chocolate Fudge Frosting
- Piped on chocolate cupcakes or swirled over a moist chocolate snack cake
- Sandwiched between brownie cookies
- As filling for macarons
- Piped on sugar cookie bars
- Spread over homemade cinnamon rolls
- Any application where you’d use a chocolate buttercream
Chocolate Frosting Video Tutorial
@mikebakesnyc small batch chocolate fudge buttercream; yes please!
Note: Recipes are developed and tested using grams for accuracy. If you prefer volume measures, use the unit conversion in the recipe card to switch to US customary measurements.
Share your results: If you make this small-batch Chocolate Fudge Buttercream, tag @mikebakesnyc on Instagram and consider leaving a rating and review.
Print Recipe
6-Ingredient Chocolate Fudge Buttercream
Ingredients
- 113 g unsalted butter softened
- 57 g 70% cacao dark chocolate finely chopped
- 160 g powdered sugar
- ½ teaspoon vanilla bean paste
- 15 g milk
- ⅛ teaspoon fine sea salt
Instructions
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Melt the chopped chocolate in a heat-safe bowl over gently simmering water (double boiler) or in the microwave in 30-second bursts, stirring between intervals. Once smooth, remove from heat and let cool slightly.
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In a stand mixer fitted with the paddle attachment or in a large bowl with a handheld mixer, beat the softened butter on medium speed until creamy, about 1 minute. Add powdered sugar, vanilla, milk, and salt. Beat on low for 30 seconds, then increase to medium-high and beat for 2 minutes.
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Add the melted chocolate and beat on high for 1–2 minutes until the frosting is fluffy and fully combined. Adjust consistency as needed: more powdered sugar to thicken, more milk to loosen, or a pinch of salt to balance sweetness. The final texture should be soft and pipeable, not runny.
Notes
Storage: Store in an airtight container in the refrigerator up to 5 days or freeze up to 3 months. Thaw in the refrigerator and rebeat briefly before using.