Preheat your oven to 350°F (175°C). Grease a 9-inch round cake pan or a similar size oven-safe dish.

Prepare the apples. Peel and slice your apples into thin wedges, then set aside.

Mix the dry ingredients. In a medium bowl, whisk together flour, baking powder, cinnamon, and salt until evenly combined.

Cream butter and sugar. In a large mixing bowl, combine the softened butter and granulated sugar. Beat until light and fluffy—about 2–3 minutes.

Incorporate the eggs. Add in the eggs one at a time, mixing well after each addition. Then mix in the milk and vanilla extract.

Combine! Gradually add the dry mixture into the wet, stirring gently until just combined. Be careful not to over-mix; you want to keep that cake nice and fluffy!

Fold in the apples. Carefully mix in the sliced apples to distribute them evenly throughout the batter.

Pour the batter into your prepared pan and smooth out the top. Bake in your preheated oven for 30-35 minutes or until a toothpick inserted in the center comes out clean.

Prepare the caramel sauce. In a small saucepan over medium heat, combine brown sugar and heavy cream. Stir until the mixture starts to simmer and the sugar dissolves. Allow it to cook for 5-7 minutes until it slightly thickens. Remove from heat.

Once your cake has cooled, drizzle the warm caramel sauce generously on top. Serve slices warm or at room temperature.