Coffee Buttercream Recipes

Steps:

• In a small bowl, dissolve espresso powder in hot water; set aside. In the heatproof bowl of an electric mixer, combine egg whites, sugar, and salt. Set the bowl over a pan of simmering water. Whisk constantly until sugar has dissolved and whites are hot to the touch, 3 to 5 minutes.
• Transfer mixture to the bowl of an electric mixer fitted with the whisk attachment and mix on low speed, gradually increasing to high speed, until stiff, glossy peaks form, about 10 minutes.
• With machine running on low speed, add butter to the egg whites, beating until smooth. Add the espresso mixture and continue beating until incorporated.

Steps:

• Place your coarsely-ground coffee beans in a lidded container and add the 4 cups water, stirring to fully saturate the beans. Cover and keep in the fridge or just on the counter overnight, or at least 8 hours. Strain through a cheesecloth or a clean dish towel you don't mind staining, and set the cold brew aside, discarding the used grounds.
• Place your powdered egg whites (if using) in a small bowl and top off with the 14 tablespoons cold brew. Whisk gently but vigorously until you no longer see lumps. Pour into the bowl of your stand mixer and set aside.
• Place the 1/2 cup cold brew into a large, deep saucepan and add the brown sugar. It is important that the saucepan be deep because brown sugar syrup tends to boil up higher than white sugar, and you don't want to have to deal with a syrup spill, trust me! Set over medium heat, stirring occasionally. Use a pastry brush dipped in water to melt the sugar crystals that form on the sides of the pan. When the syrup begins to boil, reduce the heat to low and insert a candy thermometer into the syrup. Allow it to continue to boil while moving on to the next step.
• Using the whisk attachment, whip the whites until frothy. Then, if using, sprinkle in the pinch of cream of tartar (this improves the strength of the meringue).
• Keeping an eye on the temperature of the sugar syrup, increase the speed of the mixer to high to achieve stiff peaks. Ideally, you will time this to coincide with the sugar syrup reaching 240° F. If your whites reach stiff peaks before the sugar syrup reaches the correct temperature, reduce the mixer speed to the lowest setting and leave running until the syrup is ready.
• When the syrup reaches 240° F, increase the mixer speed to the highest setting. Remove the saucepan from the heat and slowly pour the hot syrup down the side of the bowl into the egg whites, being very careful to avoid allowing the stream to hit the whisk and spatter. Pour slowly and steadily until all the syrup has been added, and continue beating the meringue until it becomes light and fluffy and holds its shape exactly when the beater is removed, roughly 3-5 minutes.
• After this time, the meringue may still be hot-if so, place the bowl in the refrigerator (or freezer) for 10-15 minutes until it has cooled all the way through.
• When the meringue has cooled, place the bowl back on the mixer, replacing the whisk with the paddle attachment. Begin mixing on low, and add the butter 1/4 cup (half a stick) at a time, beating well after each addition. Once the butter is added, increase the speed to medium and beat the buttercream until it becomes light and fluffy. It may look soupy or curdled shortly after all the butter is added-this is okay! Just keep on beating it and it will whip up into a light, fluffy cloud.
• Add the vanilla additional grounds, if using, and beat on low speed until incorporated. Use straight away or keep in the refrigerator for up to 2 weeks in an airtight container, bringing to room temperature and beating until smooth to use.
• Enjoy!

Steps:

• Beat together confectioners' sugar, butter or margarine, coffee, and vanilla until smooth. Add more liquid or confectioners' sugar as needed.

Steps:

• Heat the oven to 180C/160C fan. Line and butter two 18cm sandwich tins. Add the sugar and butter to a bowl and whisk until very fluffy and pale.
• Whisk the eggs in a mug with a fork, then add them gradually to the mixture with 1 tbsp of flour each time. (Make sure you don't use all the flour.) When the eggs have been fully combined into the mix, add the rest of the flour and fold it in gently.
• Add the dissolved coffee to the mixture, still folding. Divide into the sandwich tins and cook for 25-30 min until risen and firm and a skewer inserted into the middle comes out clean. Leave to cool in the tin for 5 mins then turn out onto a wire rack to cool completely. Can be frozen at this stage.
• Meanwhile, make the icing by beating the icing sugar with the butter until light and fluffy, then add the dissolved coffee. Whisk, then cover and set aside until ready to ice the cake.
• Spread half the icing on the bottom of one sponge and spread the strawberry jam on the bottom of the other, if using. Sandwich together, then spread the remaining icing on top. Decorate with walnuts or cherries, if you like.

Steps:

• Dissolve flavored instant coffee in hot milk; set aside.
• Beat butter in large bowl with electric mixer on medium speed until creamy. Gradually add sugar, beating on low speed after each addition until well blended. Add coffee mixture; mix well.
• Let frosting stand, if necessary, until of desired spreading consistency. Use to frost your favorite cake or cupcakes.

Steps:

• Whisk the egg whites and sugar together in the bowl of an electric mixer. Set the bowl over simmering water and whisk gently until the sugar is dissolved and the egg whites are hot.
• Attach the bowl to the mixer and whip with the whisk on medium speed until cooled. Switch to the paddle and beat in the softened butter and continue beating until the buttercream is smooth. Dissolve the instant coffee in the liquor and beat into the buttercream until smooth. Buttercream may separate after liquor is added, but continue to beat and it will reform.

Steps:

• In a small bowl, stir together the confectioners sugar and cocoa powder. In another bowl, beat the butter until creamy, gradually beat in the sugar mixture, being sure to scrape the bottom of the bowl, occasionally. Finally stir in the coffee, and beat until smooth.

Steps:

• Bring 1 3/4 cups sugar and water to a boil in a 3-quart heavy saucepan over medium heat, stirring until sugar has dissolved, then wash down any sugar crystals from side of pan with a pastry brush dipped in cold water. Boil, without stirring, until it registers 220 to 225°F, 15 to 20 minutes.
• At this point, while continuing to boil syrup, beat whites with espresso powder, vanilla, cream of tartar, and salt in mixer at medium speed until they just hold soft peaks. Add remaining 1/4 cup sugar, 1 tablespoon at a time, beating, and beat until whites just hold stiff peaks.
• When syrup reaches soft-ball stage (238 to 242°F), immediately pour syrup in a slow stream down side of bowl into whites (avoid beaters) while beating at high speed. Beat until completely cool, 25 to 30 minutes. With mixer at medium speed, add butter 1 tablespoon at a time, beating well after each addition (see cooks' note, below) and until buttercream is smooth. (Mixture may look curdled before all butter is added but will come together at end.)
• Transfer 2 cups buttercream to a small bowl and stir in chocolate. If buttercreams are too soft to spread, chill, stirring occasionally.