4 kitchen upside down cake Recipes

unsalted butter, plus more for preparing the pan, dark brown sugar, dark rum, fresh pineapple, peeled, cake flour, baking powder, ground cinnamon, ground nutmeg, fine salt, unsalted butter (1 1/2 sticks), at room temperature, sugar, eggs, at room temperature, whole milk, at room temperature

unsalted butter, in small pieces, plus more for the cooker, dark brown sugar , plus for lining the cooker, dark rum, ripe medium bananas (about 6), peeled and halved lengthwise, cake flour, baking powder, ground cinnamon, ground nutmeg, fine salt, unsalted butter, softened (1/2 stick), sugar, egg, at room temperature, egg yolk, at room temperature, whole milk, at room temperature, ice cream for serving

unsalted butter, at room temperature, plus more for the pan, sugar, peaches or nectarines, pitted and cut into 6 wedges each, all-purpose flour, whole almonds, baking powder, salt, eggs, vanilla extract, almond extract, whole milk, vanilla ice cream , for serving (optional)