Description
This delicious marshmallow frosting is a glossy, fluffy, and sweet topping perfect for cupcakes and cakes. Made by gently heating egg whites and sugar over simmering water and then whipping until stiff peaks form, this frosting offers a smooth and airy texture with optional almond or lemon flavor enhancements for a unique twist.
Ingredients
Frosting Ingredients
- 4 large egg whites (room temperature)
- 1 cup granulated sugar
- 1/4 teaspoon cream of tartar
- 1 teaspoon pure vanilla extract
- Pinch of salt
- Optional: 1/2 teaspoon almond extract
- Optional: 1/4 teaspoon lemon juice
Instructions
- Prepare a Double Boiler: Fill a medium saucepan with about 2 inches of water and bring it to a gentle simmer over medium heat. This will serve as the water bath for gently heating the egg mixture.
- Combine Ingredients in Heatproof Bowl: While waiting for the water to simmer, place the egg whites, granulated sugar, cream of tartar, and a pinch of salt into a heatproof bowl. Once the water is simmering, set the bowl over the saucepan, ensuring the bottom does not touch the water.
- Heat and Whisk Mixture: Whisk the mixture constantly for 4 to 5 minutes until the sugar dissolves completely and the mixture reaches an internal temperature of 160°F (71°C) to ensure safety and proper texture. Then, carefully remove the bowl from the heat.
- Whip the Egg Whites: Transfer the warm egg white mixture to a stand mixer or a bowl for a hand mixer. Beat on high speed for 6 to 8 minutes until stiff, glossy peaks form, creating a light and fluffy marshmallow frosting base.
- Add Flavorings: Add the vanilla extract and any optional extracts like almond or lemon juice. Beat for another 30 seconds until all flavors are well incorporated.
- Apply or Store: Immediately pipe or spread the marshmallow frosting onto your cupcakes or cakes. If you have extra frosting, store it in the refrigerator for up to 2 hours for best consistency.
Notes
- Make sure the egg whites are at room temperature for better volume when whipped.
- Keep the heat moderate to avoid cooking the egg whites directly; a gentle simmer is key.
- The internal temperature of 160°F ensures the mixture is safe to eat by gently pasteurizing the egg whites.
- This frosting is best used immediately but can be refrigerated for short-term storage up to 2 hours; re-whip slightly if needed before use.
- Optional extracts like almond or lemon add a nice personalized flavor twist but can be omitted for a classic vanilla taste.