Apple Crisp Frozen Apples Oats

Featured in: Sweet Treats

This timeless dish combines tender, thawed frozen apples with a spiced sugar blend and a crisp oat crumble topping. Baked until golden and bubbling, it offers a warm, hearty fruit dessert perfect for any season. Simple preparation and wholesome ingredients make it ideal for a quick treat, while options for nuts or gluten-free adaptations add variety and texture. Best served slightly cooled, it pairs beautifully with vanilla ice cream or whipped cream for extra indulgence.

Updated on Tue, 18 Nov 2025 10:41:00 GMT
Warm, bubbly Apple Crisp with oat topping, showcasing juicy apples perfect for dessert. Pin
Warm, bubbly Apple Crisp with oat topping, showcasing juicy apples perfect for dessert. | kitchenprairie.com

A comforting, classic dessert featuring tender, juicy apples topped with a golden, crunchy oat crumble. Perfect for a quick and easy treat using store-bought frozen apples.

Every fall, I make apple crisp at least once a week for my family. Using frozen apples means I can whip this up whenever the craving hits, no peeling required.

Ingredients

  • Frozen sliced apples: 900 g (2 lbs), thawed and drained
  • Granulated sugar: 2 tbsp
  • Ground cinnamon: 1 tsp
  • All-purpose flour: 1 tbsp
  • Lemon juice: 1 tsp, optional for brightness
  • Old-fashioned rolled oats: 120 g (1 1/2 cups)
  • Brown sugar: 100 g (1/2 cup), packed
  • All-purpose flour: 75 g (1/2 cup)
  • Salt: 1/2 tsp
  • Ground cinnamon: 1/2 tsp
  • Unsalted butter: 115 g (1/2 cup), melted

Instructions

Prepare the oven and dish:
Preheat your oven to 180°C (350°F). Grease a 23 cm (9-inch) square or round baking dish.
Make the fruit base:
In a large bowl, combine thawed apples, granulated sugar, cinnamon, flour, and lemon juice. Toss until apples are evenly coated.
Assemble the crisp:
Spread the apple mixture evenly in the prepared baking dish.
Prepare oat crumble:
In a separate bowl, mix oats, brown sugar, flour, salt, and cinnamon. Pour in the melted butter and stir until the mixture forms coarse crumbs.
Top and bake:
Sprinkle the oat crumble evenly over the apples. Bake for 35 to 40 minutes, or until the topping is golden brown and the apples are bubbling.
Cool and serve:
Allow to cool for at least 10 minutes before serving. Serve warm, optionally with vanilla ice cream or whipped cream.
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My kids love helping sprinkle the crumble on top, and the smell of cinnamon apples baking is such a cozy treat in our home.

Required Tools

Mixing bowls, measuring cups and spoons, 23 cm (9-inch) baking dish, spoon or spatula, and oven

Allergen Information

Contains wheat (flour), milk (butter), oats (may contain gluten unless certified gluten-free). May contain traces of tree nuts if nuts are added. Always check labels on packaged ingredients for possible allergens.

Nutritional Information

Per serving: 290 calories, 10 g total fat, 49 g carbohydrates, and 3 g protein

Golden-brown crisp topping covers baked Apple Crisp, a simple and satisfying American dessert. Pin
Golden-brown crisp topping covers baked Apple Crisp, a simple and satisfying American dessert. | kitchenprairie.com
Golden-brown crisp topping covers baked Apple Crisp, a simple and satisfying American dessert. Pin
Golden-brown crisp topping covers baked Apple Crisp, a simple and satisfying American dessert. | kitchenprairie.com

Enjoy your apple crisp warm for the ultimate comfort dessert. Leftovers taste great for breakfast, too!

Recipe Questions & Answers

Can I use fresh apples instead of frozen?

Yes, fresh apples can be substituted. Adjust baking time slightly to ensure apples cook through and the topping crisps evenly.

How do I make the topping extra crunchy?

Adding chopped nuts such as pecans or walnuts to the oat mixture enhances texture and adds a delightful crunch.

Is it possible to make this gluten-free?

Absolutely. Use certified gluten-free oats and a gluten-free flour blend to adapt the dish while maintaining its classic texture.

What is the purpose of lemon juice in the filling?

Lemon juice brightens the fruit flavors and balances the sweetness, enhancing the overall taste.

Can I prepare this ahead of time?

Yes, you can assemble the layers in advance and refrigerate before baking. Baking time may need slight adjustment if chilled.

Apple Crisp Frozen Apples Oats

Tender apples meet a crunchy oat topping in this easy, comforting dish.

Prep duration
10 min
Cook duration
40 min
Complete duration
50 min


Skill level Easy

Heritage American

Output 6 Portions

Diet specifications Vegetarian

Components

Fruit Base

01 2 pounds frozen sliced apples, thawed and drained
02 2 tablespoons granulated sugar
03 1 teaspoon ground cinnamon
04 1 tablespoon all-purpose flour
05 1 teaspoon lemon juice (optional)

Oat Crumble Topping

01 1 and 1/2 cups old-fashioned rolled oats
02 1/2 cup packed brown sugar
03 1/2 cup all-purpose flour
04 1/2 teaspoon salt
05 1/2 teaspoon ground cinnamon
06 1/2 cup unsalted butter, melted

Directions

Phase 01

Prepare Oven and Dish: Preheat oven to 350°F. Grease a 9-inch square or round baking dish.

Phase 02

Combine Fruit Base Ingredients: In a large bowl, mix thawed apples with granulated sugar, cinnamon, flour, and lemon juice until well coated.

Phase 03

Arrange Fruit Base: Spread the apple mixture evenly in the prepared baking dish.

Phase 04

Prepare Oat Crumble: In a separate bowl, combine oats, brown sugar, flour, salt, and cinnamon. Stir in melted butter until coarse crumbs form.

Phase 05

Assemble and Bake: Sprinkle the oat crumble evenly over the apples. Bake for 35 to 40 minutes until topping is golden and apples are bubbling.

Phase 06

Rest and Serve: Let cool for at least 10 minutes before serving warm, optionally with vanilla ice cream or whipped cream.

Necessary tools

  • Mixing bowls
  • Measuring cups and spoons
  • 9-inch baking dish
  • Spoon or spatula
  • Oven

Allergy details

Review each component for potential allergens and consult with healthcare professionals if you're uncertain.
  • Contains wheat (flour), milk (butter), and oats (may contain gluten unless certified gluten-free).
  • May contain traces of tree nuts if added.

Nutrient content (each portion)

This data is offered as a general guide and isn't a substitute for professional medical guidance.
  • Energy: 290
  • Fat: 10 g
  • Carbohydrates: 49 g
  • Protein: 3 g