This coffee frosting recipe is a creamy, smooth, and melt-in-your-mouth buttercream made without icing sugar, perfect for topping your favorite desserts in under 15 minutes.
In a small bowl, dissolve the instant coffee powder in hot water and set aside to cool.
Place the softened unsalted butter in a large mixing bowl. Using an electric mixer or a stand mixer with a paddle attachment, beat the butter at medium-high speed until smooth and creamy, for 4-5 minutes. Pause occasionally to scrape the sides of the bowl to ensure even mixing.
Gradually add the sweetened condensed milk to the creamed butter in two to three batches. Continue to beat the mixture at medium speed until well combined and smooth.
Once the coffee mixture has cooled to room temperature, slowly pour it into the butter and condensed milk mixture. Beat on medium speed until the coffee is fully incorporated and the frosting is smooth and creamy.
Taste the frosting and adjust the sweetness by adding more or less condensed milk if desired. This gives you the best way to customize the frosting to your personal preference. Beat briefly to mix any additional condensed milk.
Use Room Temperature Ingredients: Ensure the butter is fully softened to room temperature before you start. This helps create a smoother, creamier frosting and ensures it blends well with the condensed milk.
Dissolve the Coffee Completely: Dissolve the instant coffee powder in hot water until no granules remain. This prevents any gritty texture in the frosting and ensures an even distribution of coffee flavor.
Use Fresh Coffee Powder: For the best and strong coffee flavor, use high-quality, fresh coffee powder. The quality of the coffee directly affects the overall taste of the frosting.
Adjust the Sweetness: The amount of condensed milk can be adjusted to your liking. Start with the recommended amount, taste, and then add more if you prefer a sweeter frosting.
Refrigeration and Re-whipping: If you need to store the frosting, bring it back to room temperature and re-whip it for a few seconds before use. This will restore its smooth, creamy texture.
Flavor Customization: This frosting is versatile. You can easily customize it by adding different flavors, like vanilla extract, cocoa powder, crushed Oreos, or a dash of cinnamon, to complement the coffee.