Brown butter chocolate chip waffles • 21⁄4 cups all-purpose flour • 3⁄4 cup cornstarch • 3 tbsp packed brown sugar • 3 tsp baking powder • 3⁄4 tsp baking soda • 11⁄8 tsp kosher salt • 3 large eggs, separated • 25⁄8 cups cold buttermilk (21⁄2 cups + 2 tbsp) • 3⁄8 cup (6 tbsp) neutral oil • 3⁄8 cup (6 tbsp) brown butter, cooled but liquid • Brown 3⁄4 cup (11⁄2 sticks) unsalted butter; you’ll use 6 tbsp • 11⁄2 tsp vanilla extract • 11⁄4–11⁄2 cups chocolate chips #waffles #brownbutterwaffles