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Apple Pie Bake

Apple pie bake with a spiced apple filling and a buttery oat crumble topping baked until golden and bubbling. Easy 9x13 dessert with a warm, spoonable texture and caramelized edges.
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Prep Time 20 minutes
Cook Time 40 minutes
Rest 15 minutes
Total Time 1 hour 15 minutes
Servings: 12 servings
Course: Dessert
Cuisine: American
Calories: 380
Ingredients Equipment Method Notes

Ingredients
  

For apple filling
  • 5 large apples 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
Serving
  • 1 vanilla ice cream or whipped cream for serving

Equipment

  • 1 sheet pan

Method
 

Preheat and prep dish
  1. Preheat oven to 375F, then grease a 9x13 baking dish. (Visual cue: oven reaches temperature before you start assembling.)
Make apple filling
  1. Toss the sliced apples with granulated sugar, cinnamon, nutmeg, cornstarch, and lemon juice until evenly coated. (Visual cue: apples look glossy and the cornstarch is evenly distributed.)
  2. Spread the apple mixture in the prepared dish in an even layer. (Visual cue: the surface is level with no large gaps.)
Assemble crumble topping
  1. Combine all-purpose flour, rolled oats, brown sugar, cinnamon, and salt in a bowl. (Visual cue: the dry mixture is uniform in color.)
  2. Cut in the cold cubed unsalted butter until crumbly. (Visual cue: you see small pea-to-sand sized butter clumps throughout.)
  3. Scatter the topping evenly over the apple filling. (Visual cue: no bare apple spots remain.)
Bake
  1. Bake for 35-40 minutes at 375F until the top is golden and the filling is bubbling. (Visual cue: you’ll see active bubbles around the edges and the crumble looks toasted.)
Rest and serve
  1. Rest for 15 minutes to let the filling thicken slightly. (Visual cue: bubbles subside and the crumble sets.)
  2. Serve warm with vanilla ice cream or whipped cream. (Visual cue: a spoon pulls through to reveal spiced apple filling beneath the crumble.)

Notes

For a thicker, sliceable bake, rest the full 15 minutes before serving. Refrigerate leftovers in a sealed container for up to 4 days; reheat at 350F until warmed through. Freezing is not recommended because the crumble and apples soften when thawed. For a lighter option, replace half the butter in the topping with an equal amount of solid plant-based butter (cold) for similar crumble behavior.