Healthy Strawberry Crumble

Section: Indulgent Desserts for Sweet Endings

This Healthy Strawberry Crumble is your go-to summer dessert—quick to make, naturally sweetened, and bursting with juicy strawberries. The oat and nut butter topping delivers a cookie-like crunch that’s both nourishing and satisfying. It’s easily adaptable with other fruits, gluten-free flours, or different nut butters. Serve warm with ice cream for a cozy finish, or enjoy it chilled straight from the fridge. Perfect for low-effort gatherings, solo treats, or make-ahead indulgence. Best of all, it's made with whole food ingredients that offer a feel-good, homemade vibe in every bite.

Published By Ioana
Updated on Tue, 03 Jun 2025 18:12:55 GMT
A bowl of strawberry crumble with a spoon in it. Bookmark
A bowl of strawberry crumble with a spoon in it. | ioanacooks.com

This Strawberry Crumble is both healthy and decadent. A fuss-free summer treat loaded with fresh strawberries and topped with a delicious cookie crumble.

This post is sponsored by One Degree Organics, but all opinions are my own.

When I think of summer, I think of resting. So the last thing I want to do is anything over complicated in the kitchen. That’s why when I’m looking for a sweet treat, this Healthy Strawberry Crumble is a must.

Decadent, deliciously sweet, but most importantly, easy to make. You just add your fruit to your baking dish, mix up your crumble topping to sprinkle on top and bake. That’s it. Serve with some ice cream if you really want it rich and enjoy.

The main ingredients for the oat crumble which includes rolled oats from One Degree Organics, a bowl of nut butter, cornstarch, oat flour, maple syrup, lemon, strawberries and walnuts.

Key Ingredients and Substitutions

  • Rolled Oats: One Degree Organics Gluten-Free Sprouted Rolled Oats are always my go to oats of choice. Using a rolled variety is best for the crumble texture we are aiming for.
  • Flour: You can use a variety of different flours for this recipe like all-purpose flour or gluten-free flours. To keep it gluten-free use almond flour or oat flour.
  • Walnuts: I love adding these omega-3-rich nuts to the crumble as they give it a nice buttery taste. You can omit them or replace them with pecans if that is what you have on hand.
  • Maple Syrup: You can also use agave syrup.
  • Nut Butter: For a more neutral taste, I used almond butter, but I’ve tested this with peanut butter as well and it came out perfect.
  • Almond Extract: This gives the crumble an almost cookie-like taste, which I absolutely adore. You can omit or swap for some vanilla extract.
  • Strawberries: Use fresh or frozen berries for this and even mix it up with a medley of different fruit if desired.
  • Cornstarch: Helps to thicken the filling, but you can also swap for arrowroot starch or flour if preferred.
  • Lemon: Helps to maintain the color of the strawberries as they bake. I also like to zest some of the lemon to add to the filling for more fresh flavor.

Choosing the Right Oats

You know I love oats. Since I use them everyday between breakfast and snacks, it’s really important for me to know more about my oats. So transparency is key. I love that One Degree Organics lives up to their name, you’re only ever one degree of separation between you and where your ingredient is grown.

One Degree Organics Sprouted Rolled Oats are gluten-free, organic and glyphosate-free, making them easier for everyone to enjoy. And they are grown using veganic farming practices, which I love to support. They truly care about the quality of their ingredients and the health of people and the planet. So when I say this is a feel good treat, I truly mean it.

How to Make Vegan Strawberry Crumble

Start with the strawberry filling:
Quarter your strawberries and place in a 8-in x 8-in ceramic pan. Top with cornstarch, brown sugar, lemon zest and lemon juice and then toss together to coat.
Prepare the crumble:
In a separate bowl, add your oats, flour, nuts, sugar, almond butter and almond extract. ingredients for the crumble and mix to combine making sure your dry and liquid ingredients are fully combined and crumbly in texture.
Top and bake:
Top your strawberries with the crumble and bake in the oven. Once cooked, remove from the oven and allow to set for about 15-20 minutes before serving.
A bowl of strawberry crumble with a scoop of ice cream. Bookmark
A bowl of strawberry crumble with a scoop of ice cream. | ioanacooks.com

Expert Tips

If you do not have a gluten allergy, you can replace the gluten-free flour suggestions for regular all-purpose flour.

Use rolled oats for the crumble. I would not recommend using quick oats as they are small and softer, which will make it harder for them to crisp up in the oven.

Change up the fruit. Combine the strawberries with other berries or choose a different berry or fruit entirely.

Make this into a single serving treat. Just fill up a small ramekin with your berries and top with a 1/4 of the crumble recipe.

Adjust the sugar based on preference. Use less if your fruit is very sweet, but feel free to add more if your strawberries are especially tart.

Make into individual single serve treats. Just divide the strawberries and crumble between 4 ramekins and bake as instructed.

A bowl of strawberries and ice cream. Bookmark
A bowl of strawberries and ice cream. | ioanacooks.com

Frequently Asked Questions About Recipes

→ Can I use frozen strawberries?

Yes, frozen strawberries work well. No need to thaw—just toss with lemon and starch as instructed.

→ What flour can I substitute with?

You can use oat flour, almond flour, or all-purpose depending on dietary needs. All work well in this crumble.

→ Can I replace almond butter?

Yes, peanut butter or sunflower seed butter are great alternatives with slightly different flavors.

→ How do I make it less sweet?

Reduce the maple syrup or sugar in the crumble and make sure your strawberries are naturally ripe and sweet.

→ Is it possible to make single servings?

Absolutely. Fill ramekins with strawberry mix, top with crumble, and bake until golden and bubbly.

→ Should I use quick oats?

Stick to rolled oats for texture. Quick oats tend to get mushy and don’t crisp up as nicely when baked.

Healthy Strawberry Crumble

Sweet summer dessert with fresh strawberries and a crisp oat topping. Easy to make and customizable.

Time Needed to Prep
10 minutes
Cooking Duration
35 minutes
Overall Time
45 minutes
Published By: Ioana

Category of Recipe: Desserts

Preparation Difficulty: Easy to Make

Type of Cuisine: American

Number of Portions: 6 How Many It Serves (1 8x8-inch dish)

Dietary Preferences: Vegan Safe, Made for Vegetarians, No Gluten, Dairy-Free Suitable

Ingredients You'll Need

→ Strawberry Filling

Ingredient 01 4 cups fresh strawberries, quartered
Ingredient 02 1 tablespoon cornstarch
Ingredient 03 1 tablespoon brown sugar
Ingredient 04 1 tablespoon lemon juice
Ingredient 05 1 teaspoon lemon zest

→ Crumble Topping

Ingredient 06 1 cup rolled oats
Ingredient 07 1/3 cup oat flour
Ingredient 08 1/4 cup chopped walnuts
Ingredient 09 2 tablespoons brown sugar
Ingredient 10 1/4 cup almond butter
Ingredient 11 1/2 teaspoon almond extract
Ingredient 12 2 tablespoons maple syrup

Steps to Follow

Step 01

Preheat the oven to 350°F (175°C). Place quartered strawberries in an 8x8-inch ceramic baking dish. Add cornstarch, brown sugar, lemon juice, and lemon zest, then toss to coat evenly.

Step 02

In a separate mixing bowl, combine rolled oats, oat flour, chopped walnuts, brown sugar, almond butter, almond extract, and maple syrup. Mix until crumbly and fully combined.

Step 03

Sprinkle the crumble topping evenly over the strawberries. Bake for 30–35 minutes, or until the top is golden brown and the filling is bubbling.

Step 04

Remove from oven and let rest for 15–20 minutes before serving. Optionally serve with a scoop of vanilla ice cream.

Extra Tips

  1. Use rolled oats instead of quick oats for a crispier texture.
  2. Customize the fruit filling with a mix of berries or stone fruits.
  3. If fruit is especially sweet or tart, adjust sugar to taste.
  4. Can be baked in individual ramekins for single-serve portions.

Tools You'll Need

  • 8x8-inch ceramic baking dish
  • Mixing bowls
  • Measuring cups and spoons
  • Spatula or wooden spoon

Allergen Information

Carefully check food labels for allergens and consult an expert if you're uncertain.
  • Contains tree nuts (walnuts, almond butter)

Nutritional Information (Per Serving)

Remember, these values are for guidance only and shouldn't replace advice from a professional.
  • Calories Per Serving: 215
  • Total Fat: 10 grams
  • Carbohydrate Amount: 29 grams
  • Protein Amount: 4 grams