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moist apple muffin with cinnamon streusel topping sitting on a counter with a pan of muffins in the background

Apple Cinnamon Streusel Muffins

Brookside Kitchen
With sweet chunks of apple, a cinnamon swirl, and crunchy cinnamon streusel topping, these muffins will make your house smell like a bakery in autumn. The only thing better than the aroma, is how delicious the muffins taste--they're the perfect treat.
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Total Time 35 minutes
Course Dessert
Yield 12 muffins

Equipment

  • Muffin Pan
  • Cupcake Liners (optional)

Ingredients
  

Muffins

  • ½ cup (1 stick) butter, softened
  • 1 cup sugar
  • 2 eggs, room temperature
  • ½ cup sour cream, room temperature
  • ⅓ cup buttermilk, room temperature
  • 2 tsp vanilla extract
  • ½ tsp salt
  • ½ tsp baking soda
  • 1 ½ tsp baking powder
  • 2 cups flour, plus 1 tbsp, divided
  • 1 cup chopped apple (approx. 1 medium/large apple)

Streusel

  • 4 tbsp butter, melted
  • 2 tbsp sugar
  • ¼ cup dark brown sugar
  • ¼ tsp salt
  • ½ tsp cinnamon
  • ¾ cup flour

Instructions
 

Prepare the Streusel

  • Add butter, sugar, brown sugar, salt, and cinnamon to a bowl and mix until combined.
  • Add flour and mix until combined. Set aside.

Prepare the Muffins

  • Preheat oven to 350℉.
  • In a bowl, cream butter and sugar together.
  • Add eggs and whisk until combined. Add sour cream, buttermilk, vanilla extract, salt, baking soda, and baking powder and whisk until fully combined.
  • Fold in 2 cups of flour until just combined.
  • In a separate bowl toss chopped apples with 1 tbsp flour to coat.
  • Add apples to the muffin batter and gently fold the batter until apples are evenly dispersed.
  • Grease or line a muffin pan with cupcake liners.
  • Add a spoonful of batter to each muffin well. Take about ⅓ of the streusel and divide it evenly over the muffin batter in each well.
  • Divide the remaining batter evenly among the muffin wells.
  • Crumble the remaining streusel evenly over each muffin.
  • Bake muffins for 18 - 22 minutes or until edges have browned and a toothpick inserted in the center comes out clean or with a few moist crumbs.
  • Allow muffins to cool in the pan for 3-5 minutes before removing and placing on a wire rack to cool completely.

Notes

A Note on Room Temperature Ingredients: room temperature ingredients mix together easily, creating a smooth batter and a more consistent texture in the final muffin.