Caramel Apple Upside Down Cake with Granny Smith Apples

For me, autumn truly begins when the scent of bubbling brown sugar fills the air from a cast iron skillet. I recall one October day when I hurried the process, skipping the few minutes of cooling before flipping the cake. Because the caramel hadn't set, the apples glided off the sponge in a slow motion catastrophe.

Despite the mess, we simply scooped it all up with spoons.

That is the beauty of this recipe; it isn't about flawless presentation or elegance. It is about the mahogany hued glaze enveloping tender apples and the cinnamon aroma that lingers throughout the home.

This iteration is more refined than the traditional versions of my childhood, replacing some of the heavy sugars with yogurt and maple syrup.

Caramel Apple Upside Down Cake

Quick Recipe Details

The goal here is a contrast between the tartness of the fruit and the richness of the butter. You want the cake to be sturdy enough to hold the apples but soft enough to melt in your mouth.

What Goes Into the Cake

I've found that using Granny Smith apples is a must. They hold their shape in the oven and provide a sharp contrast to the sweet caramel. If you use a softer apple, you'll end up with applesauce instead of a cake.

For the Base: 4 tbsp (57g) unsalted butter, melted 1/2 cup (100g) packed light brown sugar 2 medium (300g) Granny Smith apples, peeled, cored, and sliced Why this? Holds shape and adds tartness 1 tsp (2g) ground cinnamon 1/4 tsp (1g) salt

For the Batter: 1 1/2 cups (190g) all purpose flour 1 tsp (4g) baking powder 1/2 tsp (1g) salt 1/2 tsp (1g) ground nutmeg 1/2 cup (115g) unsalted butter, softened Why this? Makes the crumb tender 1/3 cup (65g) maple syrup 1 large (50g) egg 1 tsp (5ml) vanilla extract 1/2

Cup (120g) plain Greek yogurt Why this? Keeps cake moist without oil

The Right Gear

While you don't need a professional kitchen, a 9 inch cast iron skillet is the ideal choice here. It distributes heat evenly, allowing the caramel to brown more consistently than in a glass pan.

If a skillet isn't available, a 9 inch cake pan will work. Just avoid non-stick pans, which can warp under high heat. I generally use a KitchenAid stand mixer for the batter, but a hand mixer or even a bowl and whisk will work perfectly fine.

Step by step Baking

1. Heat your oven to 350°F (175°C). Spread the melted butter in a 9 inch skillet and cover it with an even layer of brown sugar.
2. In a small bowl, toss the apple slices with salt and cinnamon. Arrange them in tight, overlapping circles on top of the sugar.
3. Whisk together the flour, nutmeg, salt, and baking powder in a large bowl.
4. Use a separate bowl to cream the maple syrup and softened butter until fluffy.
5. Beat in the vanilla extract and egg.
6. Gently fold in the Greek yogurt until the mixture is smooth.
7. Gradually stir in the flour mixture until just combined. Note: Avoid overmixing so the cake doesn't become tough.
8. Spread the batter over the apples and smooth the surface with a spatula.
9. Bake for 35-40 minutes until a toothpick comes out clean and the edges are golden brown.
10. Let the cake cool in the skillet for 5 to 10 minutes. Run a knife around the side, place a plate over the top, and flip it quickly.

Fixing Common Problems

Dealing with Stuck Apples

This happens if the cake cools too long. The sugar in the caramel starts to set, effectively gluing the apples to the pan. Flip the cake while it's still warm, but not piping hot. If it's really stuck, put the pan back in the oven for 2 minutes to loosen the caramel.

Fixing a Dense Crumb

Overmixing is usually the culprit here. When you stir the flour into the wet ingredients, stop as soon as the white streaks disappear. If you beat the batter too much, the gluten develops and the cake becomes more like bread than a sponge.

Managing Burnt Sugar

If the edges of the caramel look too dark, your oven might be running hot. I've had this happen with my oven's bottom rack. Move the skillet to the middle rack and check it at the 30 minute mark. You can also shield the edges with a strip of foil if they're browning too fast.

Ways to Twist it

For a salty twist, sprinkle a pinch of flaky sea salt over the caramel before adding the apples. This balances the sweetness and gives the cake a more professional finish. To increase the spice, stir a pinch of ground cloves into the batter.

If you prefer a denser, more rustic crumb, my Irish Apple Cake is a wonderful alternative. For those seeking a more traditional shape and a slightly different spice profile, an Apple Bundt Cake is always a hit.

Going Plant Based

You can substitute vegan butter and a flax egg (1 tbsp ground flax + 3 tbsp water) in this recipe. Replace the Greek yogurt with a thick coconut yogurt. The texture will be slightly denser, but it still delivers all the right flavors.

Keeping it Fresh

Keep any remaining pieces of the Caramel Apple Upside Down Cake in a tightly sealed container inside the fridge, where it will stay moist for around 4 days. Because it contains fruit and yogurt, refrigeration is safer than leaving it on the counter.

To freeze, wrap individual slices in parchment paper and transfer them to a freezer bag. They will keep for up to 2 months.

To minimize waste, save your apple peels and cores in a freezer bag. Once you have enough, simmer them with water and a cinnamon stick to create a simple, homemade apple cider syrup.

The Best Way to Eat it

This cake is best served warm. If you've refrigerated it, pop a slice in the microwave for 15-20 seconds. The caramel becomes a silky glaze again, and the aromas of cinnamon and nutmeg wake back up.

The classic pairing is a scoop of vanilla bean ice cream. The cold cream melting into the warm, spiced cake is a combination you can't beat. If you want something lighter, a dollop of whipped cream or a drizzle of salted caramel sauce works perfectly.

Why This Texture Works

The trick here is the balance of acids and fats. The Greek yogurt provides acidity that reacts with the baking powder, creating a lift that keeps the cake from being crushed by the weight of the fruit. It also replaces a portion of the fat, giving us a lighter feel.

Apple Choice: Using Granny Smith apples keeps the structure intact. According to Serious Eats' testing, firmer apples prevent the "gummy" texture that often happens when softer fruits release too much moisture during baking.

Maple Synergy: The maple syrup doesn't just sweeten; it adds a woody depth that pairs with the cinnamon, making the overall flavor feel more grounded and autumn like.