Apple Cinnamon Crumb Muffins

Apple Cinnamon Crumb Muffins are soft, tall, and packed with little pockets of juicy apple under a buttery cinnamon crumb. The batter comes together without a mixer, so they’re easy enough for a weekday breakfast but special enough for brunch or a cozy weekend bake. Sour cream keeps the crumb tender, while a quick blast of high oven heat helps the tops rise beautifully. The apples stay pleasantly distinct instead of disappearing into the batter, and the brown-sugar streusel adds just enough crisp sweetness on top.

A firm sweet-tart apple works best here because it holds its shape as the muffins bake. Honeycrisp, Pink Lady, or Granny Smith are all great choices. Serve the muffins slightly warm, when the cinnamon aroma is strongest and the crumb topping still has a delicate crunch.

Recipe Yield: 12 muffins

INGREDIENTS

Apple muffins:
1 1/2 cups peeled, 1/4-inch diced firm apples
2 cups all-purpose flour
2 tsp baking powder
1/2 tsp baking soda
2 tsp ground cinnamon
1/4 tsp ground nutmeg
1/2 tsp fine sea salt
2 large eggs
1/2 cup packed light brown sugar
1/4 cup granulated sugar
1/4 cup unsalted butter, melted and slightly cooled
1/4 cup neutral oil
1/2 cup full-fat sour cream
1/3 cup whole milk
2 tsp vanilla extract

Cinnamon crumb:
3/4 cup all-purpose flour
1/3 cup packed light brown sugar
1 tsp ground cinnamon
1/8 tsp fine sea salt
4 tbsp unsalted butter, melted

INSTRUCTIONS

1. Make the cinnamon crumb:
Combine flour, brown sugar, cinnamon, and salt. Stir in melted butter until chunky crumbs form, then refrigerate while preparing the batter.

2. Prepare the oven:
Preheat oven to 425°F. Line a standard 12-cup muffin pan with paper liners.

3. Mix the dry ingredients:
Whisk flour, baking powder, baking soda, cinnamon, nutmeg, and salt together in a medium bowl.

4. Mix the wet ingredients:
In a large bowl, whisk eggs, brown sugar, and granulated sugar until smooth. Whisk in melted butter, oil, sour cream, milk, and vanilla.

5. Finish the batter:
Add dry ingredients to the wet mixture and fold just until nearly combined. Then gently fold in the diced apples until no dry flour remains.

6. Fill and top:
Divide batter evenly among the muffin cups, filling them nearly full. Scatter cinnamon crumb generously over each muffin, leaving some larger clusters.

7. Bake the muffins:
Bake for 5 minutes at 425°F. Without opening the oven, reduce heat to 350°F and bake 15–18 minutes more, until risen and a toothpick inserted into the muffin portion comes out clean or with a few moist crumbs.

8. Cool and serve:
Cool muffins in the pan for 5 minutes. Then transfer to a wire rack and serve warm or at room temperature.

Helpful Tips to Perfect This Recipe

• Use a firm baking apple: Honeycrisp, Pink Lady, Granny Smith, or Fuji work especially well because they hold their shape while baking instead of turning mushy.
• Keep the apple pieces small: Dice the apples about 1/4 inch so they distribute evenly without weighing down the fluffy muffin crumb.
• Do not overmix the batter: Fold only until the flour disappears. A thick, slightly lumpy batter helps keep the muffins tender with good height.
• Keep some crumb clusters larger: Avoid breaking the topping into fine crumbs. A mix of small crumbs and buttery clusters creates a more natural bakery-style finish.
• Follow the temperature change without opening the oven: The initial 425°F heat encourages a strong rise, while reducing the temperature to 350°F allows the centers to finish baking gently.