Healthy Apple Crumble Muffins

Name: Healthy Apple Crumble Muffins
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Ingredients: 1 ¾ cups oat flour (+1 tbsp for apples); 1 tsp baking powder; ½ tsp baking soda; ½ tsp salt; 1 tsp apple pie spice (or just cinnamon); 1 cup grated Granny Smith apple (peeled); 1 cup diced Granny Smith apple (peeled); ⅓ cup coconut oil (melted); ½ cup maple syrup; 2 large eggs (room temp); ¾ cup Greek yogurt (room temp); ⅓ cup coconut sugar; ⅓ cup oat flour; 3 tbsp coconut oil (melted); ¼ tsp cinnamon

These healthy apple crumble muffins are like little apple pies you can eat for breakfast. They're made with oat flour, Greek yogurt, and maple syrup, so they're naturally sweet, moist, and topped with the most irresistible golden oat crumble. Perfectly cozy, wholesome, and ready in under 30 minutes!

Healthy apple oat muffins with golden oatmeal crumble.

A Quick Look At The Recipe

✅ Recipe Name: Healthy Apple Crumble Muffins
🕒 Ready In: 30 minutes
👪 Serves: 12 muffins
🍽 Calories: 250 calories per muffin
🥣 Main Ingredients: Oat flour, Greek yogurt, maple syrup, eggs, fresh apples, cinnamon, oat crumble topping
📖 Dietary Info: Gluten-free, naturally sweetened, refined sugar–free, meal-prep friendly, freezer-friendly
⭐ Why You'll Love It: tastes like apple pie in muffin form, high-domed and super moist, topped with a golden oat crumble, easy one-bowl batter, and the perfect cozy breakfast or snack.

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I've baked a lot of muffins over the years, but these healthy apple pie muffins hold a special spot in my kitchen. I wanted something that captured all the cozy, apple-pie flavors of fall but still felt light enough for breakfast or a quick snack — and this recipe nails it. Using oat flour instead of all-purpose flour keeps them wholesome and gluten-free, while Greek yogurt adds just the right amount of protein and moisture so every bite is soft and fluffy.

The best part? The golden crumble on top makes them feel like a bakery treat without all the extra sugar or butter. It's the same "secret touch" I use in my healthy banana crumb muffins and healthy coffee cake, and it works beautifully here, too. These muffins never last more than a day in my kitchen!

Jump to:

A Quick Look At The Recipe
Why You'll Love This Recipe
Ingredients You'll Need
Easy Substitutions & Variations
Need to substitute an ingredient?
How to Make Healthy Apple Crumble Muffins
Expert Tips
What Makes These Apple Muffins Healthy?
Frequently Asked Questions
Troubleshooting Guide
Storage Tips
More Healthy Muffin Recipes You'll Love
📖 Recipe
💬 Comments

Why You'll Love This Recipe

Apple pie vibes in muffin form: Juicy apple pieces, warm cinnamon, and a golden crumble topping make these muffins taste like dessert for breakfast, just like my viral healthy apple crisp recipe!
Made with oat flour: 100% oat flour keeps them wholesome, gluten-free, and naturally higher in fiber. Just like my healthy oat flour pumpkin muffins!
Moist and fluffy: Greek yogurt and maple syrup add moisture and natural sweetness without weighing the muffins down.
Quick and easy: Just one bowl, simple ingredients, and ready in under 30 minutes.
Freezer-friendly: Bake a batch now and stash extras for cozy, grab-and-go breakfasts later.

⭐⭐⭐⭐⭐

I LOVE THESE! I tried them today for the first time & it will be my new go-to for sure. So simple & nutritious.

- Kelsey

Ingredients You'll Need

“All ingredients for healthy apple crumble muffins arranged in small bowls with labels, including oat flour, grated apple, diced apple, Greek yogurt, maple syrup, eggs, coconut oil, cinnamon, vanilla, baking powder, baking soda, and crumble topping ingredients.

Oat flour – My go-to base for these muffins. It makes them wholesome, gluten-free friendly, and gives a soft, tender crumb. Unlike rolled oats, finely ground oat flour bakes up fluffy instead of dense.
Fresh apples – I like using a mix of grated apple (for moisture) and diced apple (for juicy little bursts in each bite). This combo keeps the muffins from drying out — one of my favorite baking tricks.
Greek yogurt – Adds protein and richness while keeping the muffins super moist. It also reacts with the baking soda for a little extra lift (hello, high muffin domes!).
Maple syrup – Naturally sweetens the batter and adds warm, caramel-like flavor. It blends seamlessly with the apples and cinnamon.
Eggs – Bind everything together and help create that light, airy muffin texture.
Cinnamon & vanilla – Cozy fall flavors that make these muffins taste like apple pie.
Baking powder & baking soda – The combo ensures the muffins rise tall and stay fluffy.
Crumble topping – A mix of oat flour, cinnamon, coconut sugar (or brown sugar), and a little butter. It bakes into a golden, crisp topping that makes these feel like a bakery-style treat — but lightened up.

Scroll to recipe card for quantities!

Easy Substitutions & Variations

Make them gluten-free: These healthy apple muffins are naturally gluten-free; just make sure you use certified gluten-free oat flour. Try these almond flour banana muffins too!
Make them dairy-free: Swap the Greek yogurt with a thick coconut yogurt and use coconut oil in the crumble topping.
Oat flour swap: I love using oat flour here for the best texture, but you can swap in white whole wheat flour, all-purpose flour, or a 1:1 gluten-free baking blend. Almond flour won't work — it's too heavy and oily for this recipe.
Coconut oil swap: Melted butter works too, though the flavor will be slightly richer.
Apple variety: Sweet apples (like Fuji or Honeycrisp) give the muffins natural sweetness, while tart apples (like Granny Smith) make them taste more "apple pie." Both are delicious!
Add crunch: Stir chopped walnuts or pecans into the crumble topping or fold them into the batter for extra texture.
Mini or jumbo muffins: Bake minis for 10–12 minutes or jumbo muffins for 22–25 minutes.

healthy apple pie crumble muffins made with oat flour

Need to substitute an ingredient?

Ask AI for suggestions on how to substitute the particular ingredient.

How to Make Healthy Apple Crumble Muffins

Freshly diced apples and apple sticks in a bowl, ready for making healthy apple crumble muffins.

Step 1: Peel both apples, then grate one and dice the other.

Coating fresh apple slices and cubes in oat flour in a bowl to keep them from sinking in healthy apple crumble muffins.

Step 2: Toss the grated and diced apples in 1 tablespoon of oat flour, then set aside.

Whisking together the wet ingredients — Greek yogurt, eggs, maple syrup, and melted coconut oil — in a bowl for healthy apple crumble muffins.

Step 3: In a medium bowl, whisk together melted coconut oil, maple syrup, eggs, and Greek yogurt.

Oat flour apple crumble muffin batter mixed in a mixing bowl.

Step 4: Add the wet mixture to the dry ingredients and stir until just combined. Fold in the apples.

Unbaked apple crumble muffin batter divided into a lined cupcake tin.

Step 5: Divide the batter evenly into a lined muffin tin, filling each cup about ⅔ full.

Unbaked healthy apple muffins in a lined cupcake tin with golden oat crumble sprinkled on top before baking.

Step 6: Sprinkle the crumble topping evenly over each muffin.

Freshly baked healthy apple crumble muffins with golden domes and crisp oat topping in a lined cupcake tin.

Step 7: Bake at 425°F for 5 minutes, then reduce the heat to 375°F and bake for another 12–15 minutes, until a toothpick comes out clean.

Expert Tips

Use both grated and diced apples. This is my go-to trick for muffins that stay moist but still have those juicy bites of apple in every bite.
Coat the apples in flour. Toss the grated and diced apples in a spoonful of oat flour before mixing them in — this keeps them evenly distributed and prevents sinking.
Start hot for high muffin domes. Bake at 425°F for the first 5 minutes, then reduce to 375°F. The blast of heat gives you that bakery-style rise without drying out the centers.
Don't overmix the batter. Mix until just combined. Overmixing develops the gluten in oat flour and can make your muffins dense instead of light and fluffy.

What Makes These Apple Muffins Healthy?

Made with 100% whole-grain oat flour
Naturally sweetened with maple syrup (no refined sugar)
Extra protein and moisture from Greek yogurt
Less oil than traditional muffins
No seed oils

Healthy oat flour apple pie muffins topped with a golden cinnamon streusel.

Frequently Asked Questions

Why did the apples sink to the bottom of my muffins?

This usually happens if the apples aren't coated in flour before baking. Toss your grated and diced apples in a spoonful of oat flour before folding them into the batter — it helps them stay evenly distributed.

Can I use rolled oats instead of oat flour for these healthy apple muffins?

Not directly. Rolled oats will make the muffins heavy and chewy. If you only have rolled oats, blitz them in a blender or food processor until fine — that's essentially oat flour. Just be sure to measure after blending for accuracy. Try these blueberry banana oatmeal muffins instead.

Can the healthy apple muffin batter sit overnight in the fridge?

I don't recommend letting this muffin batter sit overnight. Once the wet and dry ingredients are mixed, the baking powder and baking soda start reacting right away. If the batter sits too long, the muffins won't rise properly and can turn out dense. Instead, bake them fresh and store extras — they keep well at room temperature for 2 days, in the fridge for 5 days, or in the freezer for up to 3 months.

What kind of apples work best for muffins?

I like using tart apples like Granny Smith apples for that classic "apple pie" flavor, but sweeter apples like Honeycrisp or Fuji work just as well — so use whatever you have on hand.

Troubleshooting Guide

Problem	Cause	Fix
Muffins are dense	Overmixed or oven too cool	Mix until just combined; use oven thermometer
Crumble fell off	Moved too soon	Cool 5 minutes in the pan before transferring
Muffins stuck to liner	Removed too hot	Let cool slightly or use parchment liners

Storage Tips

Room Temperature: Store cooled muffins in an airtight container at room temperature for up to 2 days. Keep a paper towel in the container to absorb extra moisture and keep the crumble crisp.

Refrigerator: For more extended storage, refrigerate in an airtight container for up to 5 days. Warm in the microwave for 15–20 seconds before enjoying.

Freezer: These muffins freeze beautifully! Once cooled, place them in a freezer-safe bag or container for up to 3 months. To reheat, thaw overnight in the fridge or warm straight from frozen in the microwave for 30–40 seconds.

Healthy apple muffins with a oat crumble on top.

More Healthy Muffin Recipes You'll Love

If you're as muffin-obsessed as I am, here are a few more recipes to try next:

Did you make this recipe?

If you make this recipe, be sure to comment and rate it down below. Also, don't forget to tag me @healthfulblondie on Instagram and use the hashtag #healthfulblondie so I can see your delicious creation and share it with my followers!

📖 Recipe

Comments

5 from 2 votes