Step 1

Preheat oven to 375 F.

Step 2

For the apple topping: In a 9 to 10-inch skillet, melt the butter over low heat. Add  sugar to the pan and stir around, then place apple slices, cut side down, in the pan. Don’t pack them too tightly, but try not to leave overly large gaps. Allow this to cook over low/medium-low heat while you make the cake batter, about 10 minutes.

Step 3

In the bowl of an electric mixer, beat the butter and sugar until light and fluffy. Mix in the vanilla and eggs. Add the sour cream and mix well.

Step 4

In a bowl, mix the flour, baking powder, salt, and cinnamon. Stir together then gradually add the flour mixture into the creamed butter mixture until just combined. Gently stir in the chopped apple.

Step 5

Remove the skillet from the heat. Spoon the batter over the top, then spread gently so the batter is evenly distributed. Place on a sheet tray lined with foil and bake for 25 -30 minutes, or until cake is golden brown and bubbly. Allow the cake to sit in skillet for five minutes, then invert onto a serving plate. Don’t worry if some of the topping isn’t perfect---it’ll taste perfect!

Step 6

Serve warm with vanilla ice cream.