Caramel Peach Upside Down Cake is a deliciously moist dessert made with fresh, canned, or frozen peaches, perfect with ice cream.
To make buttermilk, stir ½ cup milk with ½ tablespoon white vinegar and let stand for 10 min before using. If you use a spring-form pan, consider lining it with parchment paper and butter to prevent leaking of the butter and sugar mixture during baking.