Apple Crisp Frozen Apples Oats

Featured in: Cozy Winter Bakes

This classic apple crisp features juicy, thawed frozen apples mixed with warming spices and topped with a buttery oat crumble. The combination of tart apples and a crunchy golden topping creates a satisfying contrast of textures. Easy preparation involves tossing the apple base and oats topping separately before baking to perfection. Serve warm, optionally with creamy vanilla ice cream or whipped cream, for a comforting dessert that’s both quick and effortless to make.

Updated on Tue, 18 Nov 2025 11:32:00 GMT
Golden-brown Apple Crisp with a bubbling, warm fruit base, ready to serve with ice cream. Save to Pinterest
Golden-brown Apple Crisp with a bubbling, warm fruit base, ready to serve with ice cream. | frostkettle.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 discovered this recipe when I needed a fast dessert for unexpected guests. Using frozen apples saved me so much time in the kitchen.

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

Preheat Oven:
Preheat your oven to 180°C (350°F). Grease a 23 cm (9-inch) baking dish.
Mix Apple Base:
Combine thawed apples, granulated sugar, cinnamon, flour, and lemon juice in a large bowl. Toss until apples are coated.
Layer Fruit:
Spread apple mixture evenly in the prepared baking dish.
Make Crumble:
Mix oats, brown sugar, flour, salt, and cinnamon in another bowl. Stir in melted butter until coarse crumbs form.
Top Crisp:
Sprinkle oat crumble evenly over apples.
Bake:
Bake for 35-40 minutes until topping is golden brown and apples are bubbling.
Serve:
Let cool for at least 10 minutes before serving. Enjoy warm, optionally with vanilla ice cream or whipped cream.
Fresh-baked Apple Crisp with juicy, tender apples under a crispy, buttery oat crumble topping. Save to Pinterest
Fresh-baked Apple Crisp with juicy, tender apples under a crispy, buttery oat crumble topping. | frostkettle.com

This apple crisp is always a hit at our family gatherings, especially when served with a scoop of ice cream.

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 tree nuts if added. Always check labels for allergens.

Nutritional Information

Per serving: Calories 290, Total Fat 10 g, Carbohydrates 49 g, Protein 3 g.

Warm Apple Crisp featuring delicious frozen apples, perfect for a cozy dessert any time. Save to Pinterest
Warm Apple Crisp featuring delicious frozen apples, perfect for a cozy dessert any time. | frostkettle.com

Enjoy your apple crisp fresh from the oven for the best flavor and texture. Store leftovers tightly covered in the fridge up to 3 days.

Recipe Questions & Answers

Can I use fresh apples instead of frozen?

Yes, fresh apples can be used. Adjust baking time slightly as fresh apples contain more moisture.

What type of oats works best for the topping?

Old-fashioned rolled oats provide a hearty, crunchy texture ideal for the crumble topping.

How can I make the topping gluten-free?

Use certified gluten-free oats and substitute all-purpose flour with a gluten-free flour blend.

Can nuts be added to the topping?

Yes, chopped pecans or walnuts add extra crunch and depth to the oat crumble.

Is lemon juice necessary in the fruit base?

Lemon juice brightens the flavors but is optional. It helps balance the sweetness and enhance the apple taste.

Apple Crisp Frozen Apples Oats

Tender apples baked under a crunchy oat topping, a quick and delicious sweet treat.

Prep Duration
10 minutes
Time to Cook
40 minutes
Overall Time
50 minutes
Created by Nora Whitman


Skill Level Easy

Cuisine American

Makes 6 Serving Size

Dietary Information Meatless

What You Need

Fruit Base

01 2 lbs 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 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

How-To Steps

Step 01

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

Step 02

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

Step 03

Arrange fruit base: Evenly spread the apple mixture in 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 coarse crumbs form.

Step 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.

Step 06

Cool and serve: Let cool for at least 10 minutes before serving warm, optionally with 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 Info

Review every ingredient for allergens. Ask a healthcare professional if unsure.
  • Contains wheat, milk, and oats (may contain gluten); may contain traces of tree nuts if added.

Nutrition Details (Each Serving)

Given for informational purposes, this isn't medical advice.
  • Energy Value: 290
  • Fats: 10 g
  • Carbohydrates: 49 g
  • Proteins: 3 g