If you love a frosting that’s silky, light, and just a little different from the usual buttercream, this Espresso Ermine Frosting is going to be your new favorite trick. It’s made with a classic ermine frosting base (that cooked milk-and-flour method that sounds fancy but is actually super simple). Then, it’s whipped until fluffy with butter and finished with a bold hit of espresso. I love this one for chocolate cakes, vanilla cupcakes, or anything that could use a little coffee-shop vibe.
Ingredients & Substitutions
- Whole milk: Creates the cooked base for ermine frosting. Whole milk gives the best richness and structure, but 2% milk can work in a pinch.
- All-purpose flour: Thickens the milk mixture into a pudding-like base. This is what gives ermine frosting its signature light texture.
- Unsalted butter: The foundation of the frosting’s structure. Make sure it’s fully softened, so it whips smoothly into the base.
- Granulated sugar: Sweetens the frosting and helps it whip into a smooth, fluffy finish once combined with butter.
- Vanilla extract: Adds warmth and rounds out the flavor. You can swap vanilla bean paste for a more intense flavor.
- Espresso powder: Gives the frosting its bold coffee flavor. Adjust up or down depending on how strong you want the espresso taste. Instant espresso powder works best.
Tips for Success
- Cool the cooked base completely. The milk-and-flour mixture must be fully at room temperature before adding to the butter, or the frosting can turn soupy.
- Whip the butter well. Creaming the butter and sugar until light and fluffy helps create that signature airy ermine texture.
- Don’t rush the final whipping. Once everything is combined, whipping for several minutes is what transforms it into a smooth, silky frosting.
- Dissolve the espresso powder first. Mixing it with a small amount of hot water prevents a gritty texture and helps it blend evenly.
- Fixing texture issues: If the frosting looks curdled or split, keep whipping; it usually comes back together with time and friction.
FAQs
What is ermine frosting?
Ermine frosting, also known as milk frosting, flour buttercream, flour frosting, or $300 Dollar Frosting, is a classic cooked frosting made by combining a milk-and-flour base with whipped butter and sugar. It’s lighter than traditional buttercream and has a silky, almost whipped texture.
Does this frosting taste like coffee?
Yes, but in a balanced way. The espresso adds a noticeable coffee-shop flavor without being overpowering. Some taste testers wanted more coffee flavors, while others thought it was just right. You can increase or decrease the espresso powder depending on how strong you want it.
Can I make ermine frosting ahead of time?
Yes. You can make it 1 to 2 days in advance and store it in the refrigerator. Let it come to room temperature, then re-whip until smooth and fluffy before using.
Why is my frosting runny or separated?
This usually happens if the cooked milk mixture was too warm when added to the butter. Keep whipping; it often comes back together as it emulsifies. If needed, chill it briefly and re-whip.
Can I use this frosting for piping?
Yes. Once fully whipped, this frosting pipes beautifully on cupcakes and cakes and holds soft but stable shapes.
How to Use Espresso Ermine Frosting
This frosting is soft, silky, and pipes beautifully once whipped, making it perfect for a variety of desserts.
- Cakes: Use it between layers or as a smooth exterior frosting for my perfect chocolate cake, vanilla delight cake, or spice cakes.
- Cupcakes: Pipe or spread onto cupcakes (try it on my white cupcakes!) for a light, fluffy finish with a hint of espresso flavor.
- Sheet cakes: Spread it evenly for an easy, bakery-style frosting.
- Fillings: It also works well as a filling for sandwich cookies or layered desserts.
How to Store Espresso Ermine Frosting
Store espresso ermine frosting in an airtight container in the refrigerator for up to 5 days. Before using, let it sit at room temperature for about 20 to 30 minutes, then re-whip with a mixer until smooth and fluffy again.
You can also freeze it for up to 2 months. Thaw overnight in the refrigerator, bring to room temperature, and re-whip before using to restore its light, creamy texture.
Espresso Ermine Frosting
Ingredients
- 1 cup (245 g) whole milk
- 5 tablespoons all-purpose flour
- 1 cup (200 g) granulated sugar
- 1 cup (2 sticks / 227 g) unsalted butter, room temperature
- 1 teaspoon vanilla extract
- 1 tablespoon espresso powder, adjust to taste
Instructions
- In a medium saucepan over medium heat, whisk together the milk and flour. Cook, whisking constantly, for 3 to 5 minutes, until the mixture thickens into a very thick pudding consistency and no lumps remain. It should coat the back of a spoon.
- Remove from heat and transfer the mixture to a bowl. Let it cool completely to room temperature before continuing. (This step is important so the frosting doesn’t melt later.)
- In a stand mixer fitted with the paddle attachment, cream the butter and sugar on medium-high speed for 2 to 3 minutes, until light and fluffy.
- Add the cooled milk mixture and vanilla extract. Beat on medium-high speed until smooth and fully combined.
- Switch to the whisk attachment.
- Dissolve the espresso powder in 1 teaspoon hot water, then add it to the frosting. Whip for 5 to 7 minutes, until light, fluffy, and silky smooth.
Did you make this recipe?
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