Ingredients
Equipment
Method
Prep and crumb topping
- Preheat the oven to 350F, then grease a 9x13 baking dish. Aim for even coating so the cake releases cleanly.
- Combine all-purpose flour, brown sugar, cinnamon, and salt in a bowl, then drizzle in melted butter and toss with a fork until large crumbs form. Refrigerate the crumb topping to keep it thick.
Cake batter
- Whisk all-purpose flour, baking powder, baking soda, cinnamon, nutmeg, and salt until evenly blended. This helps distribute the spices throughout the crumb-free batter.
- Beat softened butter and granulated sugar until fluffy, about 2-3 minutes, then add eggs and vanilla and beat again until smooth. Scrape down the sides to keep the mixture uniform.
- Fold the flour mixture into the wet ingredients until just combined, then fold in the diced apples. Stop mixing as soon as no dry streaks remain.
- Spread the batter in the prepared 9x13 pan and cover evenly with the refrigerated crumb topping. Use your fingers to sprinkle generously so each bite gets crumb.
Bake and finish
- Bake at 350F for 45-50 minutes, until a toothpick comes out clean. Look for a set center and lightly golden crumb edges.
- Let cool briefly, then dust with powdered sugar before serving. The sugar will sit neatly on top once the cake is warm-not-hot.
Notes
Pro tip: refrigerating the crumb topping helps it stay thick and forms bigger, buttery crumbles instead of melting away. Store covered in the refrigerator for up to 4 days; reheat individual slices in the microwave for 15–25 seconds. Freezing is yes—freeze cooled slices up to 2 months and thaw overnight in the fridge. For a lighter option, use low-fat sour cream with no other changes (texture will be slightly softer but still works).
