This moist and tender blueberry banana bread is loaded with ripe bananas and juicy blueberries, finished with a crunchy sugar topping. Perfect for breakfast, snacks, or freezing for later.
Preheat oven to 350°F. Grease a 9x5 inch loaf pan and line with a parchment sling for easy removal.
In a large bowl, whisk together mashed bananas, melted butter, granulated sugar, brown sugar, eggs, vanilla, and yogurt until smooth.
In a separate bowl, whisk flour, baking soda, baking powder, salt, and cinnamon.
Add dry ingredients to the banana mixture and fold gently just until a few streaks of flour remain.
Fold in blueberries and lemon zest (if using) just until evenly distributed. Do not overmix.
Scrape batter into the prepared pan and smooth the top. Sprinkle turbinado sugar over the surface if desired.
Bake for 55 to 65 minutes, or until a tester inserted in the center comes out clean with a few moist crumbs.
Cool in the pan for 10 minutes, then lift out and cool completely on a wire rack before slicing.
Notes
Use very ripe bananas for the best flavor. Frozen blueberries work well—fold them in straight from the freezer to minimize streaking. Store tightly wrapped at room temperature for 2 days, or refrigerate up to 5 days. The loaf freezes well for up to 2 months.