Single serve recipes really are the best. They make just the right amount, always hit the spot, and are always easier than making a whole batch of something. A few single serve recipes I find myself coming back to time and time again are my 5-ingredient single serve cinnamon roll, single serve protein cookie, healthy gluten-free mug cake, and now (& especially this time of year) this single serve apple crumble. It’s perfectly sweet, super easy to make, and just as delicious as your favorite apple crumble recipe. I even managed to make this recipe with just 5 ingredients. So the next time you’re craving a delicious fall treat, whip up this single serve apple crumble, cozy up on the couch, and enjoy! 🥰

Why You’ll Love This Single Serve Apple Crumble
- Perfect for one – no sharing needed!
- Minimal ingredients & fuss – only 5 components and one bowl for prep.
- Customizable & comforting – cozy, fall flavor, and ready in under 30 minutes!
- Gluten-Free – naturally gluten-free with rolled oats and almond flour.
Sam’s Recipe Tips
- Use a firm but juicy apple (e.g. Honeycrisp, Pink Lady) so pieces soften but don’t disappear.
- Ensure the topping is crumbly, not doughy – mix just until the oat/almond flour mix clumps slightly.
- Let it cool for a few minutes before digging in – this helps juices settle.
- For extra depth, stir a pinch of nutmeg or allspice into the apples before topping.

Adjust This Recipe to Your Dietary Needs
- Make it Vegan / Dairy-Free: Use coconut oil or vegan butter instead of regular butter.
- Make it Nut-Free: Replace almond flour with extra oats or a seed-based flour (e.g. sunflower seed flour).
- Optional Flavors: Add a splash of vanilla extract or a teaspoon of maple syrup for extra sweetness.

5-Ingredient Single Serve Apple Crumble
Equipment
- 1 small bowl
- 1 small ramekin
Ingredients
For the apples:
- 1 apple peeled and chopped
- 1 tablespoon brown sugar or coconut sugar
- 1/2 teaspoon cinnamon optional
For the crumble:
- 1/4 cup rolled oats
- 2 tablespoons almond flour or all purpose flour
- 1 tablespoon brown sugar or coconut sugar
- 2 tablespoons melted butter or coconut oil
Instructions
- Preheat oven to 350° Fahrenheit.
- Add the chopped apples, coconut sugar, and cinnamon to a small ramekin and stir until the apples are evenly coated in sugar. Set that aside then make the crumble.
- Mix together the rolled oats, almond flour, coconut sugar, and melted butter or coconut oil in a small bowl until a crumby mixture forms. Sprinkle the crumble evenly over the top of the apples.
- Bake the apple crumble for 25-30 minutes, or until the apples are very soft. Let the apple crumble cool slightly before topping with ice cream, yogurt, or whipped cream.