Apple Crisp Frozen Apples Oats

Featured in: Sweet Comfort Bakes

This comforting dish features thawed frozen apples mixed with cinnamon and sugar, baked beneath a golden oat crumble. The topping blends rolled oats, brown sugar, and melted butter to create a crunchy contrast to the tender fruit. Baked until bubbling and golden, it’s a simple, satisfying sweet treat that can be served warm, with optional vanilla ice cream or whipped cream. Variations include adding nuts or using gluten-free ingredients for dietary needs.

Updated on Tue, 18 Nov 2025 11:36:00 GMT
Golden, bubbly apple crisp with warm, tender apples and a sweet oat crumble topping. Save to Pinterest
Golden, bubbly apple crisp with warm, tender apples and a sweet oat crumble topping. | lovelyserena.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.

I first made this apple crisp when I had unexpected guests and only frozen apples in my freezer. The results were so cozy and delicious that it quickly became a favorite weeknight dessert in our house.

Ingredients

  • Fruit Base: 900 g (2 lbs) frozen sliced apples, thawed and drained, 2 tbsp granulated sugar, 1 tsp ground cinnamon, 1 tbsp all-purpose flour, 1 tsp lemon juice (optional, for brightness)
  • Oat Crumble Topping: 120 g (1 1/2 cups) old-fashioned rolled oats, 100 g (1/2 cup) brown sugar, packed, 75 g (1/2 cup) all-purpose flour, 1/2 tsp salt, 1/2 tsp ground cinnamon, 115 g (1/2 cup) unsalted butter, melted

Instructions

Preheat Oven:
Preheat your oven to 180°C (350°F). Grease a 23 cm (9-inch) square or round baking dish.
Prepare Apple Base:
In a large bowl, combine thawed apples, granulated sugar, cinnamon, flour, and lemon juice. Toss until apples are evenly coated.
Arrange in Dish:
Spread the apple mixture evenly in the prepared baking dish.
Make 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 Apples:
Sprinkle the oat crumble evenly over the apples.
Bake:
Bake for 35-40 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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| lovelyserena.com

My kids love helping sprinkle the crumble on top before baking. This dessert is a sweet family tradition at our autumn gatherings.

Required Tools

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

Allergen Information

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

Nutritional Information

Calories: 290, Total Fat: 10 g, Carbohydrates: 49 g, Protein: 3 g (per serving)

A close-up shot of freshly baked Apple Crisp, highlighting the golden, crisp topping and juicy apples. Save to Pinterest
A close-up shot of freshly baked Apple Crisp, highlighting the golden, crisp topping and juicy apples. | lovelyserena.com

This apple crisp is best enjoyed warm from the oven with a scoop of vanilla ice cream. Leftovers reheat beautifully for another sweet treat the next day.

Ask About This Recipe

Can I use fresh apples instead of frozen?

Yes, fresh apples work well. Adjust baking time slightly to ensure the fruit is tender and juices are bubbling.

How do I make the oat topping extra crunchy?

Using melted butter mixed thoroughly with oats and brown sugar helps achieve a golden, crisp texture during baking.

Is it possible to make this dish gluten-free?

Absolutely. Substitute regular oats and flour with certified gluten-free versions to accommodate gluten sensitivities.

Can I add nuts to the topping?

Yes, chopped pecans or walnuts can be mixed into the oat crumble for additional texture and flavor.

What is the best way to serve this dish?

Serve warm, optionally topped with vanilla ice cream or whipped cream for a creamy contrast to the crisp oat layer.

Apple Crisp Frozen Apples Oats

Tender apples under a crunchy oat topping, ready in under an hour for an easy dessert.

Prep Duration
10 minutes
Cook Duration
40 minutes
Overall Time
50 minutes
Created by Serena Moore


Skill Level Easy

Cuisine American

Makes 6 Portions

Dietary Details No Meat

What You Need

Fruit Base

01 2 lbs frozen sliced apples, thawed and drained
02 2 tbsp granulated sugar
03 1 tsp ground cinnamon
04 1 tbsp all-purpose flour
05 1 tsp lemon juice (optional)

Oat Crumble Topping

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

How To Make It

Step 01

Preheat Oven: Set oven temperature to 350°F and grease a 9-inch square or round baking dish.

Step 02

Prepare Fruit Mixture: Combine thawed apples, granulated sugar, cinnamon, flour, and lemon juice in a large bowl; toss to coat evenly.

Step 03

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

Step 04

Make Topping: In a separate bowl, mix oats, brown sugar, flour, salt, and cinnamon. Stir in melted butter until coarse crumbs form.

Step 05

Assemble Crisp: Sprinkle the oat crumble evenly over the apples.

Step 06

Bake: Bake for 35 to 40 minutes until topping is golden brown and apples are bubbling.

Step 07

Cool and Serve: Let cool at least 10 minutes before serving. Serve warm with optional vanilla ice cream or whipped cream.

Tools You'll Need

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

Allergy Details

Review ingredients for allergens and speak to your healthcare provider if you have concerns.
  • Contains wheat, milk, and oats (may contain gluten unless certified gluten-free).
  • May contain traces of tree nuts if nuts are added.

Nutrition per Portion

Details are for reference and aren't a substitute for expert medical guidance.
  • Energy: 290
  • Lipids: 10 g
  • Carbohydrates: 49 g
  • Proteins: 3 g