Our simple gluten-free microwave apple crumble without oats is a perfect antidote for your sweet tooth. Quick and easy to make, it only uses four common ingredients.
Delicious apple crumble doesn’t have to be complicated. In fact, with this individual apple crumble in a mug, I can enjoy a warm and comforting gluten-free treat in less than 15 minutes from thinking about it.
It uses only four ingredients that are normally in my pantry. Historically, a winter treat, our microwave apple crumble recipe is great all year.

Apple crisp vs apple crumble
Often used interchangeably, there is a subtle difference between an apple crisp and an apple crumble. While both are fruit desserts topped with a flaky crust, an apple crisp typically includes oats in the topping, while a crumble does not.
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A word on oats
If you are making apple crisp for a gluten-sensitive person, including those with celiac disease, be sure to ask whether or not they eat oats. While technically not gluten, they metabolize similarly in the body, and therefore, many gluten-sensitive people avoid oats. Similarly, many eat it without issue. Importantly, today’s recipe is gluten and oat-free; therefore, it is an apple crumble.
Interestingly, in New Zealand, where I live, and in nearby Australia, both desserts are typically called crumble.

What you need to make an individual apple crumble
With only four ingredients, this single-serving microwave crumble needs only:
- Apple – We use Royal Gala apples as they are sweet, crisp, and great for either eating or cooking. However, just about any apple will do. Just remember, tart apples will produce a tart dessert.
- Brown sugar
- Gluten-free flour
- Butter
- Microwave-safe mug, bowl, or ramekin
Step by step to our gluten-free apple crumble recipe




To peel or not to peel?
I can’t help but notice that nearly every other apple crumble recipe calls for peeled apples. And to be honest, we used to peel our apples too. Then, one day, in a moment of laziness, we decided to see what would happen if we didn’t.
Sure enough, it was just as good and a bit more colorful. As we chopped the apple into small enough cubes, the skin didn’t seem tough or caught in our teeth.
More importantly, we maintain the nutrients held in the apple skin.
When feeling even lazier, we whip up a batch of our air fryer cinnamon apples.
Our gluten-free individual apple crumble recipe
Sarah Albom contributed this recipe.

Microwave Apple Crumble
Quick, easy, and delicious.
Ingredients
Filling
- 1 diced apple, medium
- 2 teaspoons brown sugar
Topping
- 3 Tablespoons all-purpose gluten-free flour
- 1 Tablespoon brown sugar
- ¾ Tablespoon butter
Instructions
Filling:
- Dice apple into ½ to ¼ inch cubes and place into a microwave-safe bowl.
- Add brown sugar and mix together.
- Set aside.
Topping
- In a separate bowl, combine the dry ingredients (flour and remaining brown sugar).
- Cut in butter (either with a knife or your fingers) until small pebbles form.
- Sprinkle topping over apple / brown sugar mixture.
- Cover and microwave on high for between 1 and 1.5 minutes.
- Carefully remove the lid and let cool for at least 5 minutes before eating.
Nutrition Information:
Yield: 1 Serving Size: 1Amount Per Serving: Calories: 244Total Fat: 6gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 15mgSodium: 53mgCarbohydrates: 49gFiber: 5gSugar: 37gProtein: 1g
Assumes an average size apple. Final nutritional information will also depend on brand of flour used.
I just made this recipe for a family gathering and it was a huge hit! I was worried it would be too easy, but the flavors came together perfectly. The gluten-free crust was a game-changer for my niece who has celiac disease. Definitely going to make this again!
Loved this recipe! I’m gluten-intolerant and it’s always a challenge to find recipes that cater to my dietary needs. This individual microwave apple crumble was a game-changer. The instructions were clear and easy to follow, and it turned out perfectly. Can’t wait to make it again!
I used almond flour and added some cinnamon. Perfect for a quick treat. 🙂
I love a good apple crumble and this definitely is going to be in my list to do. Saving the recipe.
This is such a fun treat to indulge in when you need something quick and easy to satisfy a craving. So delicious!
I’m a sucker for any apple dessert and the fact that this one only takes a few minutes in the microwave makes it all the more tempting!!! Yum.
Looks so tasty!
Thank you. It was nice of you to share the recipe.
This is fab when you need a quick dessert and I’m a huge crumble fan too.
Yum! This was so easy to make. I love that it’s a single serving like a mug cake!