Pistachio Brown Butter Cake With Concord Grapes Recipe
Ingredients 1 cup (2 sticks) unsalted butter, cut into small pieces, plus more for pan 2 3/4 cups confectioners' sugar 1 cup pistachio flour or 1 cup unsalted pistachios and 1 tablespoon unbleached all-purpose flour 3/4 cup cake flour 1 teaspoon coarse salt 7 large egg whites (3/4 cup plus 2 tablespoons) 1 heaping cup halved, seeded Concord grapes 2 tablespoons demerara sugar Preparation Melt butter in a small heavy-bottomed saucepan over medium heat....