Caramel Apple Upside-Down Cake – Simmer + Sauce

Ingredients

• For the Topping:
• 1/4 cup unsalted butter
• 2/3 cup brown sugar, packed
• 1/2 teaspoon cinnamon
• 3 medium apples, peeled, cut in half, and sliced into 1/4-inch slices
• For the Cake:
• 1 1/3 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon ground cinnamon
• 1 cup granulated sugar
• 1/2 cup unsalted butter, room temperature
• 2 eggs
• 1 teaspoon vanilla extract
• 1/4 cup milk