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Home Dessert Muffins

Apple Oat Muffins

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By: Diana Published on August 29, 2025

This post may contain affiliate links. Please read my disclosure policy.

a crumb topped muffin with a frosting drizzle on a plate. Text overlay says "easy apple oat muffins"

Moist, fluffy, and warmly spiced, these Apple Oat Muffins are made with fresh Granny Smith apples and applesauce for maximum fall apple flavor. A buttery oat crumble topping and sweet maple glaze make these apple muffins a delicious treat for cozy mornings.

a plate holding a half dozen apple oat muffins with crumb topping and maple glaze. In the background are more muffins and fresh granny smith green apples.


Diana, author of Little Sunny Kitchen.

If you crave apple pie for breakfast…

…You’ll love this easy recipe for apple muffins with the best cinnamon crumb topping!

I always have muffins somewhere in my kitchen, whether it’s a fresh, warm batch of pumpkin muffins cooling on the counter, a basket of cinnamon roll muffins ready to share with a friend, or well-wrapped cranberry orange muffins waiting for me in the freezer.

Now, with this moist muffin recipe that includes juicy apples, I can enjoy any of my favorite fall baking flavors for breakfast on busy mornings, as a snack, or even as a light dessert!

The most amazing thing about these muffins is the topping. A buttery oat crumble is the best part of any apple crumb pie or apple crisp, and it makes these apple oat muffins completely perfect.

Enjoy!

Ingredient Notes

The ingredients needed to bake homemade apple oat muffins, measured into small glass bowls and arranged on a marble counter.

Complete list of ingredients and amounts can be found in the recipe card below.

  • Fresh Apples: Choose Granny Smith apples for their tart, extra apple-y flavor and firm texture. They won’t turn to mush when they’re baked, and should be easy to find in most grocery stores. When testing this recipe, I tried with some other apple varieties and just didn’t like them as much as I did with green Granny Smiths. You only need one medium or large apple for this recipe! Just peel, core, and cut into small cubes.
  • Applesauce: Add moisture and even more apple flavor! Unsweetened applesauce works best, as there is already plenty of sugar in the recipe.
  • Spices: You can’t make apple cinnamon muffins without a little bit of spice! To remind you of homemade apple pie, I’ve included the perfect amounts of ginger, cinnamon, and nutmeg.
  • Oil: To add moisture to the muffins. This recipe uses less oil than some of my other muffin recipes, since the applesauce also helps to keep them moist.
  • Flour: I recommend using regular all-purpose flour in this recipe. Cake flour would make the muffins too delicate, and whole wheat flour is a bit dense, which will keep them from rising. For a gluten-free version, use a 1:1 ratio all purpose gf flour.
  • Oats: We’ll use old fashioned rolled oats in the batter and in the crumble topping. The first step to making this muffin batter is to soak the oats in milk and applesauce to soften them up.
  • Milk: To make the muffin batter the perfect consistency. Replace the milk with apple juice or apple cider to make the muffins dairy-free and extra flavorful.
  • Brown Sugar: The rich flavor of brown sugar goes so well with apples and warm spices.
  • Oat Crumble Topping: A simple mixture of cold unsalted butter, old-fashioned rolled oats, brown sugar, cinnamon, and salt will give you a crispy, crumbly topping.
  • Maple Glaze: I mix pure maple syrup with powdered sugar to create a sweet drizzle to finish the muffins.

Tip!

The crumble topping will work best if you use cold cubes of butter straight from the fridge, and the butter stays cold until it goes into the oven. I suggest making the cinnamon crumb topping first, then storing it in the fridge until just before you need it.

an apple oat muffin removed from it's paper. A bite has been taken to show the apple pieces inside.

Tips for Making the Best Muffins

  • If your apples seem extra juicy, pat them dry with paper towels to remove any excess moisture. If the apples are too wet, you might end up with soggy muffins.
  • I think that old-fashioned rolled oats give the topping the best crispy texture, but if you have quick oats or instant oats, you can also use them. Just know that the crumble won’t be as crunchy.
  • Consider adding chopped almonds or pecans to the topping to add extra texture and nutty flavor.
  • I always prefer to use paper liners for muffins, but if you’d rather not, just be sure to grease the muffin tin very well to avoid any sticking.
  • Avoid overmixing the batter. After you add the dry ingredients to the wet ingredients, stir just a few times, and stop when the flour is no longer visible.
  • Fill the cups almost all the way to the top. Because of the apple pieces in the batter, these won’t rise quite as tall as my other muffins.
  • Add the glaze only after the muffins have cooled completely. I’ve learned that if you add frosting to warm muffins, it will soak in rather than sit on top.

My Best Muffin Recipes!

Carrot Banana Muffins

Classic Blueberry Muffins

Mini Chocolate Chip Muffins

Pumpkin Cream Cheese Muffins

More Muffins →

Did you make this? Be sure to leave a review below and tag me on Facebook, Instagram, or Pinterest!

Recipe
an apple muffin with an oat crumb topping and a drizzle of icing set on a round white plate. In the background are more muffins, green apples, and cinnamon sticks.
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Apple Oat Muffins

Prep Time: 15 minutes mins
Cook Time: 20 minutes mins
Total Time: 35 minutes mins
Author: Diana
Print Rate Recipe
Moist and warmly spiced apple oat muffins made with applesauce and fresh Granny Smith apple pieces. Topped with a buttery oat crumble and finished with a maple glaze, these bakery-style muffins are perfect for cozy mornings or fall baking.
12 Muffins
Moist and warmly spiced apple oat muffins made with applesauce and fresh Granny Smith apple pieces. Topped with a buttery oat crumble and finished with a maple glaze, these bakery-style muffins are perfect for cozy mornings or fall baking.

Equipment

  • Mixing Bowls
  • Muffin tins
  • Wire rack
  • Whisk
  • Pastry cutter or fork

Ingredients 

Crumble Topping

  • ½ cup (60 g) all-purpose flour
  • ¼ cup (50 g) light brown sugar
  • ¼ cup (52 g) rolled oats
  • ½ teaspoon ground cinnamon
  • ¼ teaspoon salt
  • ¼ cup (62 g) unsalted butter cold, cubed

Muffins

  • 1½ cups (155 g) rolled oats
  • ¾ cup (190 g) unsweetened applesauce
  • ½ cup (120 ml) whole milk
  • ⅔ cup (135 g) light brown sugar
  • ⅓ cup (80 ml) canola or vegetable oil
  • 2 large eggs lightly beaten
  • 1 teaspoon pure vanilla extract
  • 1 ¾ cups (210 g) all-purpose flour
  • 1 teaspoon baking powder
  • 1 teaspoon ground cinnamon
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • ¼ teaspoon ground ginger
  • ⅛ teaspoon ground nutmeg
  • 1 cup (120 g) finely chopped Granny Smith apple (about 1 medium apple, cut into ¼-inch pieces)

Maple Glaze

  • 1 cup (200 g) powdered sugar
  • 2 tablespoons (30 ml) pure maple syrup plus an additional tablespoon if needed

Instructions 

Crumble:

  • In a medium bowl, whisk together the flour, brown sugar, oats, cinnamon, and salt.
    oats, flour, sugar, and cinnamon in a large glass bowl.
  • Cut in the cold butter using a pastry cutter or your fingertips until crumbles form. Chill in the fridge until ready to use.
    oat crumb topping for muffins mixed in a glass bowl.

Muffins:

  • Preheat the oven to 425°F (220°C), or 200°C for a fan oven. Line a 12-count muffin pan with paper liners.
  • In a large bowl, whisk together the oats, applesauce, and milk. Let sit for 5 minutes to soften the oats.
    oats, applesauce, and milk stirred together in a large glass bowl with a gray spatula.
  • Whisk in the brown sugar and oil. Add the eggs and vanilla and whisk again until smooth.
    oat mixture for muffins after sitting for 5 minutes. the oats are softened and have absorbed some of the milk.
  • In a separate bowl, whisk together the flour, baking powder, cinnamon, baking soda, salt, ginger, and nutmeg.
    flour, baking powder, cinnamon, whisked together in a small glass bowl with a very small wire whisk.
  • Add the dry ingredients to the wet and mix until just combined.
    dry ingredients added to wet ingredients to make apple oat muffins.
  • Gently fold in the chopped apple.
    chopped granny smith apples added to oat muffin batter.
  • Scoop the batter into the prepared muffin liners, filling nearly to the top.
  • Top each muffin with a generous amount of crumble.
    crumble topping added to apple muffins in a muffin pan.
  • Bake for 5 minutes, then reduce the oven temperature to 350°F (180°C), or 160°C for a fan oven, and continue baking for 12–15 minutes, or until a toothpick inserted into the center comes out clean.
  • Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
    closeup of baked apple oat muffins with crumb topping, cooling on a wire rack.

Glaze:

  • In a small bowl, whisk together the powdered sugar and 2 tablespoons of maple syrup until smooth. Add more syrup if needed to thin.
    icing mixed in a small glass bowl with a whisk.
  • Drizzle over the cooled muffins and let the glaze set for 5 minutes before serving.
    apple oat muffins on a wire rack, drizzled with maple icing.

Notes:

  • If your apples are extra juicy, pat them dry with a paper towel before folding into the batter to avoid soggy muffins.
  • You can use quick oats instead of rolled oats, but the texture will be slightly softer.
  • Muffins can be stored in an airtight container at room temperature for up to 3 days, or refrigerated for 5 days. Freeze for up to 3 months.

Nutrition Information

Serving: 1muffin, Calories: 361kcal, Carbohydrates: 59g, Protein: 5g, Fat: 12g, Saturated Fat: 4g, Polyunsaturated Fat: 4g, Monounsaturated Fat: 3g, Trans Fat: 0.2g, Cholesterol: 42mg, Sodium: 214mg, Potassium: 184mg, Fiber: 2g, Sugar: 31g, Vitamin A: 190IU, Vitamin C: 1mg, Calcium: 64mg, Iron: 2mg

This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the USDA Food Composition Database, whenever available, or otherwise other online calculators.

© Little Sunny Kitchen

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