- 3 medium apples (Honeycrisp, Granny Smith, or Gala), peeled and sliced
- ½ cup unsalted butter
- ¾ cup brown sugar, packed
- 1 tsp cinnamon
- ¼ tsp nutmeg (optional)
- 1 tsp vanilla extract
For the Cake Batter:
- 1 ½ cups all-purpose flour
- 1 ½ tsp baking powder
- ½ tsp salt
- ½ cup unsalted butter, softened
- ¾ cup granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- ½ cup whole milk (or buttermilk for extra richness)