Apple Crisp Frozen Apples Oats

Featured in: Sweet & Calm Treats

This dish showcases juicy frozen apples coated with cinnamon and sugar, nestled beneath a crunchy oat crumble. The mixture is baked until golden brown and bubbling, resulting in a comforting dessert with rich textures and flavors. Using thawed frozen apples speeds up preparation and delivers consistent sweetness and tenderness. A perfect easy treat to enjoy warm, optionally paired with vanilla ice cream or whipped cream for extra creaminess.

Updated on Tue, 18 Nov 2025 13:21:00 GMT
Golden-brown Apple Crisp with frozen apples, bubbling fruit beneath a crispy oat topping. Save
Golden-brown Apple Crisp with frozen apples, bubbling fruit beneath a crispy oat topping. | moonthyme.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 tried making this crisp while searching for an effortless dessert that would satisfy my family's love of apple treats. Frozen apples made the process simple, and the results are reliably delicious.

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 (optional): 1 tsp, for brightness
  • Old-fashioned rolled oats: 120 g (1 1/2 cups)
  • Brown sugar, packed: 100 g (1/2 cup)
  • All-purpose flour: 75 g (1/2 cup)
  • Salt: 1/2 tsp
  • Ground cinnamon: 1/2 tsp
  • Unsalted butter, melted: 115 g (1/2 cup)

Instructions

Prepare oven and dish:
Preheat oven to 180°C (350°F). Grease a 23 cm (9-inch) square or round baking dish.
Mix apple base:
In a large bowl, combine thawed apples, granulated sugar, cinnamon, flour, and lemon juice. Toss until apples are coated.
Layer apples:
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 melted butter and stir until crumbs form.
Top apples:
Sprinkle the oat crumble evenly over the apples.
Bake:
Bake for 35-40 minutes until topping is golden brown and apples are bubbling.
Cool and serve:
Allow to cool for 10 minutes before serving warm. Optionally serve with vanilla ice cream or whipped cream.
Warm, delicious Apple Crisp with frozen apples, perfect with a scoop of vanilla ice cream. Save
Warm, delicious Apple Crisp with frozen apples, perfect with a scoop of vanilla ice cream. | moonthyme.com

Sharing this apple crisp reminds me of cool autumn nights when my family gathered in the kitchen, eagerly waiting by the oven. The aroma always brings smiles and comfort to everyone.

Required Tools

Mixing bowls, measuring cups and spoons, 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

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

A close-up of freshly baked Apple Crisp, highlighting the sweet, cinnamon-infused frozen apples. Save
A close-up of freshly baked Apple Crisp, highlighting the sweet, cinnamon-infused frozen apples. | moonthyme.com

This apple crisp is just as comforting on busy weeknights as it is at family gatherings. Enjoy every warm, golden bite.

Recipe FAQ

Can I use fresh apples instead of frozen?

Yes, fresh apples can be used but may require adjusting cooking time to ensure they soften properly.

How do I make the topping extra crunchy?

Adding chopped nuts or increasing butter slightly in the oat mixture will enhance crunchiness.

Is it possible to make this gluten-free?

Using certified gluten-free oats and a gluten-free flour blend will make this suitable for gluten-free diets.

How can I add brightness to the fruit base?

A splash of lemon juice brightens the apple mixture and balances sweetness nicely.

What’s the best way to serve this warm dish?

Serve warm directly from the oven, optionally with a scoop of vanilla ice cream or whipped cream for extra richness.

Apple Crisp Frozen Apples Oats

Juicy apples baked beneath a crunchy oat topping for a warm, sweet finish.

Prep Time
10 min
Time to Cook
40 min
Total Duration
50 min
Created by Lydia Brooks


Skill Level Easy

Cuisine American

Portions 6 Serving Size

Diet Info Vegetarian Friendly

What You'll 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 and prepare baking dish: Heat oven to 350°F. Lightly grease a 9-inch square or round baking dish.

Step 02

Combine fruit ingredients: In a large bowl, toss thawed apples with granulated sugar, cinnamon, flour, and lemon juice until evenly coated.

Step 03

Assemble fruit base: Spread the apple mixture evenly into the prepared baking dish.

Step 04

Prepare oat topping: In a separate bowl, mix oats, brown sugar, flour, salt, and cinnamon. Stir in melted butter until mixture forms coarse crumbs.

Step 05

Add topping and bake: Evenly sprinkle the oat crumble over the apples. Bake for 35 to 40 minutes, until topping is golden and apples are bubbling.

Step 06

Cool before serving: Let cool for at least 10 minutes. Serve warm, optionally accompanied by vanilla ice cream or whipped cream.

Tools Needed

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

Allergen Details

Review every ingredient for allergens and ask a medical professional when unsure.
  • Contains wheat, milk, and oats (may contain gluten). May contain tree nuts if added.

Nutrition Details (each serving)

These details are for reference only, and shouldn't replace healthcare advice.
  • Energy: 290
  • Fats: 10 g
  • Carbohydrates: 49 g
  • Proteins: 3 g