Ingredients
Equipment
Method
- Preheat the oven to 350°F and grease a 9-inch cake pan. Line the bottom with parchment paper to prevent sticking.
- Add the diced apples to a bowl and toss with apple cider vinegar. Let them sit while you prepare the batter.
- In a small bowl, whisk together the flour, baking powder, and salt until evenly combined.
- In a large bowl, beat the butter, white sugar, and brown sugar until light and creamy. Add the eggs one at a time and mix until smooth and glossy.
- Stir in the dark rum and vanilla extract. The batter should smell warm and slightly sweet.
- Add the flour mixture in two parts and stir gently until no dry streaks remain. Do not overmix the batter.
- Fold the apples into the batter until every piece is lightly coated. Transfer to the prepared pan and smooth the top.
- Sprinkle the remaining sugar over the surface. Bake for 45–50 minutes until the top is golden brown and a skewer inserted in the center comes out mostly clean.
- Let the cake cool in the pan for 30 minutes before removing. Dust with powdered sugar before serving if desired.
Notes
Use a mix of sweet and tart apples for the best flavor and texture.
If using very firm apples like Granny Smith, cut them smaller so they soften fully while baking.
Store the cake loosely covered at room temperature to help keep the sugar top from turning soggy.
