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Crockpot Apple Crisp

A ridiculously easy, make-ahead apple crisp made in a slow cooker, featuring tender cinnamon apples topped with a buttery oat crumble—perfect for cooler days and cozy gatherings.
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Prep Time 15 minutes
Cook Time 4 hours
Total Time 4 hours 15 minutes
Course Dessert
Cuisine American
Servings 8 servings
Calories 300 kcal

Ingredients
  

Apple Filling

  • 8 cups Apples, peeled, cored, and sliced (Granny Smith + Honeycrisp mix is ideal)
  • 1 tablespoon Fresh lemon juice Prevents browning and brightens flavor
  • 1/4 cup Granulated sugar
  • 1/3 cup Brown sugar Light or dark; dark = deeper molasses vibe
  • 2 tablespoons Cornstarch For thickening
  • 2 teaspoons Ground cinnamon
  • 1/4 teaspoon Ground nutmeg
  • 1 teaspoon Pure vanilla extract
  • 1 pinch Salt

Crisp Topping

  • 1 1/2 cups Old-fashioned rolled oats
  • 3/4 cup All-purpose flour Or almond flour for gluten-free
  • 1/2 cup Brown sugar
  • 1/2 cup Chopped pecans or walnuts (optional)
  • 1 teaspoon Ground cinnamon
  • 1/4 teaspoon Salt
  • 1/2 cup Unsalted butter, melted (1 stick)
  • 1/2 teaspoon Vanilla extract

Optional Serving

  • as needed Vanilla ice cream or whipped cream
  • as needed Caramel sauce

Instructions
 

Preparation

  • Lightly grease the slow cooker insert with butter or nonstick spray. Optionally, line with a parchment sling.
  • In a large bowl, combine apples, lemon juice, granulated sugar, brown sugar, cornstarch, cinnamon, nutmeg, vanilla, and a pinch of salt. Toss until every slice looks glossy.
  • In another bowl, mix oats, flour, brown sugar, nuts (if using), cinnamon, and salt. Pour in melted butter and vanilla. Mix until clumpy.

Cooking

  • Add the apple mixture to the slow cooker and sprinkle the oat topping evenly over the apples.
  • Cover and cook on LOW for 210-270 minutes, or on HIGH for 120-150 minutes.
  • For extra crispness, prop the lid with a wooden spoon for the last 20-30 minutes to let steam escape.

Serving

  • Let cool for 10-15 minutes before serving. Serve warm with ice cream and caramel sauce.

Notes

Store in an airtight container in the fridge for up to 4 days or freeze for up to 2 months. Reheat to restore crispness. Customize with various fruit or nut options and adjust the sweetness to taste.
Keyword Apple Crisp, comfort food, Easy Recipe, fall dessert, Slow Cooker