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Apple Pie Bake

Apple pie bake with a buttery oat crumble topping and spiced apple filling that bubbles for a pie-like finish. Baked in a 9x13 dish for easy slicing and caramelized, golden edges.
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Prep Time 20 minutes
Cook Time 40 minutes
Resting 15 minutes
Total Time 1 hour 15 minutes
Servings: 12 servings
Course: Dessert
Cuisine: American
Calories: 360
Ingredients Equipment Method Notes

Ingredients
  

For apple filling
  • 5 apples Large, peeled and sliced.
  • 0.5 cup granulated sugar
  • 2 tsp cinnamon
  • 0.25 tsp nutmeg
  • 2 tbsp cornstarch
  • 1 tbsp lemon juice
For topping
  • 1 cup all-purpose flour
  • 1 cup rolled oats
  • 0.75 cup brown sugar Packed.
  • 1 tsp cinnamon
  • 0.25 tsp salt
  • 0.5 cup unsalted butter Cold and cubed.
  • 1 vanilla ice cream or whipped cream For serving.

Equipment

  • 1 sheet pan

Method
 

Preheat and assemble
  1. Preheat the oven to 375F, then grease a 9x13 baking dish.
  2. Toss the sliced apples with granulated sugar, cinnamon, nutmeg, cornstarch, and lemon juice, then spread them in the prepared dish, forming an even layer.
Make the crumble topping
  1. Combine all-purpose flour, rolled oats, brown sugar, cinnamon, and salt, then cut in the cold butter until the mixture looks crumbly with small pea-size bits.
  2. Scatter the topping evenly over the apple filling so it covers the surface in a single, even layer.
Bake and serve
  1. Bake at 375F for 35-40 minutes, until the top is golden and the filling is actively bubbling around the edges.
  2. Rest for 15 minutes so the filling thickens, then serve warm with vanilla ice cream or whipped cream.

Notes

For clean slices, rest the bake the full 15 minutes before serving. Store leftovers covered in the refrigerator for up to 4 days; reheat portions in the microwave until warm. Freezing is not recommended because the crumble and apple texture can soften on thawing. For a lighter option, use a 1:1 gluten-free all-purpose flour blend and certified gluten-free oats in the topping.