Pomegranate macaron shells:
- ¼ cup POM Wonderful 100% Pomegranate Juice
- 1 cup confectioners’ sugar
- ½ cup almond flour
- 1 teaspoon cornstarch
- 2 large egg whites, at room temperature
- ¼ cup granulated sugar
- ⅛ teaspoon cream of tartar
- 2 drops red food coloring
Vanilla buttercream:
- ½ cup unsalted butter, softened
- 1½ cups confectioners’ sugar
- 1 teaspoon vanilla extract
- 2 tablespoon heavy cream
- ⅛ teaspoon salt