Peach Upside Down Cake
- 1/4 cup salted butter
- 1/2 cup brown sugar
- 1/2 teaspoon cinnamon
- 2 cups peach slices
- 1 1/2 cups flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/4 cup salted butter
- 3/4 cup sugar
- 1 egg
- 1/2 cup sour cream
- 1 teaspoon vanilla
- 1/3 cup milk