Unbelievably Moist Banana Bread

Bakery-style crumb in one bowl, about 10 minutes prep

A soft, ultra-moist banana bread with a tall rise, rich banana flavor, and a tender crumb thanks to ripe bananas, melted butter, and a little sour cream.

Close-up slices of moist banana bread with a golden crust and tender crumb on a board; no garnish.

Why you’ll love it

  • One-bowl easy banana bread mixture with everyday ingredients
  • Extra moist and tender crumb (thank you, sour cream and brown sugar)
  • Tall, even slices that freeze well and toast beautifully
  • Flexible: add toasted walnuts for banana nut bread recipe lovers
  • Camera-friendly: close-up of moist banana bread crumb looks amazing in pins

Ingredients (notes only)

  • Ripe bananas: deeply speckled, mashed for big banana flavor
  • Melted unsalted butter: buttery richness without creaming
  • Sour cream: keeps the loaf moist and tender
  • Eggs + vanilla: structure and aroma
  • Brown sugar + a little white sugar: moisture and caramel notes
  • All-purpose flour: sturdy but soft; don’t overmix
  • Baking soda + baking powder + salt: reliable lift and balance
  • Cinnamon (optional): cozy bakery vibe
  • Toasted walnuts (optional): classic nutty crunch
    Full measurements in the recipe card.

Step-by-step

  1. Prep
    Heat oven to 350°F. Line a 9×5-inch loaf pan with parchment leaving overhang.
  2. Mash & mix
    In a large bowl mash bananas smooth. Whisk in melted butter, sour cream, sugars, eggs, and vanilla.
  3. Dry ingredients
    Sprinkle flour, baking soda, baking powder, salt, and cinnamon over the wet mixture. Fold just until a few flour streaks remain. Fold in nuts if using.
  4. Bake
    Spread into the pan and smooth the top. Bake 55 to 65 minutes, until a toothpick comes out with a few moist crumbs (the top should spring back).
  5. Cool
    Cool in pan 15 minutes, then lift out and cool fully before slicing thick.

Pro tips

  • Use bananas that are very spotty or nearly black for the best sweetness and aroma.
  • Weigh or spoon-and-level flour to avoid a dense loaf.
  • Don’t overmix; stop as soon as flour disappears.
  • Tent with foil at minute 40 if the top browns too fast.
  • For a taller crown, let the batter rest 10 minutes in the pan before baking.

Variations

  • Banana Nut Bread: fold in ¾ cup toasted chopped walnuts or pecans.
  • Chocolate Chip Banana Bread: swap nuts for ¾ cup mini chocolate chips.
  • Cinnamon Swirl: layer half the batter, sprinkle 2 tbsp brown sugar + 1 tsp cinnamon, then top with remaining batter.
  • Muffins: portion into 12 cups, bake at 350°F for 18 to 22 minutes.

How to serve

Thick slices slightly warm with butter; excellent toasted for breakfast; great with coffee or a glass of milk. For dessert, add a drizzle of honey or a swipe of cream cheese.

Make ahead & storage

  • Room temp: Wrap airtight; keeps 3 to 4 days.
  • Freeze: Slice, wrap individually, and freeze up to 3 months; thaw at room temp or toast from frozen.
  • Reheat: 300°F oven 8 to 10 minutes or toaster until edges are lightly crisp.

FAQs

Why is my banana bread dry?
Too much flour or overbaking. Spoon-and-level flour and pull when a toothpick has moist crumbs.

Can I use oil instead of butter?
Yes. Use ½ cup neutral oil; flavor is a bit milder, crumb even moister.

Do I need a mixer?
No. A whisk and spatula are perfect for this one-bowl batter.

Can I reduce the sugar?
Yes, reduce to ¾ cup total; loaf will be less caramelized but still moist.

Simple Nutrition (estimate, per 1 of 12 slices)

Calories 310 | Protein 4 g | Carbs 44 g | Sugar 23 g | Fat 13 g | Saturated Fat 7 g | Fiber 2 g | Sodium 210 mg

Sarah

Unbelievably Moist Banana Bread

This one-bowl banana bread uses ripe bananas, melted butter, and a touch of sour cream for a tall, tender loaf with an ultra-moist crumb. Add toasted walnuts for a classic banana nut bread twist.
Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Servings: 12 slices
Course: Breakfast, Dessert, Snack
Cuisine: American
Calories: 310

Ingredients
  

  • 3 large very ripe bananas, mashed (about 1½ cups)
  • ½ cup unsalted butter, melted and slightly cooled
  • ½ cup sour cream (full-fat)
  • ¾ cup packed light brown sugar
  • ¼ cup granulated sugar
  • 2 large eggs, room temperature
  • 2 tsp vanilla extract
  • 2 cups all-purpose flour (240 g), spooned and leveled
  • 1 tsp baking soda
  • ½ tsp baking powder
  • ½ tsp fine salt
  • 1 tsp ground cinnamon (optional)
  • ¾ cup toasted chopped walnuts or pecans (optional)

Equipment

  • 9×5-inch loaf pan
  • Parchment paper
  • whisk
  • spatula
  • cooling rack

Method
 

  1. Preheat oven to 350°F. Line a 9×5-inch loaf pan with parchment and lightly grease.
  2. In a large bowl whisk bananas, melted butter, sour cream, brown sugar, granulated sugar, eggs, and vanilla until smooth.
  3. Sprinkle flour, baking soda, baking powder, salt, and cinnamon over the bowl. Fold gently until just combined; a few streaks are okay. Fold in nuts if using.
  4. Spread batter in the pan. Bake 55 to 65 minutes, tenting with foil at minute 40 if browning quickly, until a toothpick comes out with moist crumbs.
  5. Cool 15 minutes in pan. Lift out to a rack and cool completely before slicing.

Nutrition

Calories: 310kcalCarbohydrates: 44gProtein: 4gFat: 13gSaturated Fat: 7gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 55mgSodium: 210mgPotassium: 220mgFiber: 2gSugar: 23gVitamin A: 350IUVitamin C: 3mgCalcium: 40mgIron: 1.3mg

Notes

Subs: Use plain Greek yogurt instead of sour cream, or neutral oil instead of butter.
Add-ins: Stir in chocolate chips, coconut flakes, or blueberries (toss in 1 tsp flour first).
Mini Loaves: Divide batter into three 5×3-inch pans; bake 30–40 minutes.
Equipment: 9×5-inch loaf pan, parchment, whisk, spatula, cooling rack.
Gluten-Free: Swap flour for a 1:1 GF baking blend and check doneness early.

Tried this recipe?

Let us know how it was!

Leave a Comment

Recipe Rating