3 pineapple mango upside cake Recipes

unsalted butter, room temperature plus more for baking dish, sugar, red wine vinegar, dark brown sugar, fresh pineapple rings, peeled, cored, and cut 1/2-inch thick, diced mango, toasted roughly chopped macadamia nuts, all-purpose flour, baking powder, salt, eggs, separated, milk

unsalted butter, room temperature plus more for baking dish, superfine sugar plus more for dusting baking pan, red wine vinegar, light or dark brown sugar (see chef s note), fresh pineapple rings, peeled, cored, and cut 1/2-inch thick, diced mango, toasted, roughly chopped macadamia nuts, all-purpose flour, baking powder, salt, eggs, separated, milk