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Coffee Cake Banana Bread

Coffee cake banana bread with a thick cinnamon streusel ribbon through the center and a deeply golden, crumbly topping. Moist banana loaf meets cinnamon-pecan streusel for a bakery-style breakfast banana bread slice.
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Prep Time 20 minutes
Cook Time 1 hour 5 minutes
Total Time 1 hour 25 minutes
Servings: 10 servings
Course: Breakfast, Snack
Cuisine: American
Calories: 360
Ingredients Equipment Method Notes

Ingredients
  

Banana bread base
  • 3 ripe bananas Mashed until smooth.
  • 0.5 cup butter Softened to room temperature.
  • 0.75 cup sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1.5 cup all-purpose flour
  • 1 tsp baking soda
  • 0.5 tsp salt
  • 0.5 cup sour cream
Streusel topping
  • 0.5 cup brown sugar
  • 0.5 cup flour
  • 1.5 tsp cinnamon
  • 4 tbsp cold butter Cubed.
  • 0.5 cup chopped pecans Optional.

Equipment

  • 1 sheet pan
  • 1 loaf pan

Method
 

Preheat and prep
  1. Preheat the oven to 350°F and grease a 9x5 loaf pan.
Make the cinnamon streusel
  1. Mix brown sugar, flour, and cinnamon in a bowl until evenly combined.
  2. Cut in the cold butter until the mixture looks crumbly; stir in pecans if using.
  3. Set the streusel aside while you mix the banana bread batter.
Mix the banana bread batter
  1. Beat softened butter and sugar until fluffy.
  2. Add eggs, vanilla, and mashed bananas, then mix until smooth.
  3. Fold in all-purpose flour, baking soda, and salt, alternating with sour cream, until just combined.
Assemble and bake
  1. Pour half the batter into the pan, then sprinkle half the streusel over it.
  2. Pour in the remaining batter and top with the remaining streusel.
  3. Bake for 60–70 minutes at 350°F until a toothpick comes out clean and the streusel is deeply golden.

Notes

For a bakery-style swirl, sprinkle the streusel in an even layer so it forms a distinct cinnamon ribbon when baked. Store covered at room temperature for 2 days or in the refrigerator for up to 5 days; freeze slices up to 2 months. For a lighter note, use low-fat sour cream if desired (texture may be slightly softer).