Yield: About 1 pound
Ingredients
- 6 1/2 ounces (182 g) unsalted butter, at room temperature
- 2 ounces (57 g) soft vegetable margarine
- 3 egg whites (96 ml)
- 6 ounces (171 g) granulated sugar
- 2 teaspoons (2 ml) vanilla extract
Instructions
- Thoroughly combine the butter with the margarine in a mixer. Reserve at room temperature.
- Combine the egg whites and sugar in a mixing bowl. Place the bowl over simmering water and heat to 140°F (60°C) while constantly whipping.
- Whip in a mixer, with a whisk attachment, set on high speed o stiff peaks. Lower the speed on the mixer, add the vanilla, and gradually whip in the butter mixture.
- Add coloring and flavorings as desired.