These bars capture everything you love about classic banana bread but bake up in a fraction of the time. They are moist, packed with comforting spices, and perfect for feeding a crowd. Whether you are a seasoned baker or a novice, this is a rewarding bake that will make your whole kitchen smell amazing!
| Prep Time | Cook Time | Total Time | Servings |
|---|---|---|---|
| 15 minutes | 25 minutes | 40 minutes | 12–16 bars |
Ingredients
The Wet Ingredients
- 1 ½ cups mashed overripe bananas (about 3–4 large bananas)
- ½ cup (1 stick) unsalted butter, melted and slightly cooled
- 1 cup packed light brown sugar
- 2 large eggs, room temperature
- 1 tsp vanilla extract
The Dry Ingredients
- 1 ½ cups all-purpose flour
- 1 tsp baking soda
- ½ tsp salt
- 1 tsp ground cinnamon
- ¼ tsp ground nutmeg
Optional: ½ cup chopped walnuts or chocolate chips!
Instructions
- Preheat and Prep: Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving a little overhang on the sides so you can easily lift the bars out later.
- Mix the Wet Ingredients: In a large bowl, whisk together the melted butter and brown sugar until smooth. Whisk in the eggs one at a time, followed by the vanilla extract and the mashed bananas.
- Combine the Dry Ingredients: In a separate medium bowl, whisk together the flour, baking soda, salt, cinnamon, and nutmeg.
- Fold Together: Gently fold the dry ingredients into the wet banana mixture using a rubber spatula. Stir just until no streaks of dry flour remain. If you are adding nuts or chocolate chips, gently fold them in now.
- Bake: Pour the batter into your prepared baking pan and spread it out into an even layer. Bake for 20–25 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out clean.
- Cool and Slice: Let the bars cool completely in the pan before using the parchment paper to lift them out. Slice into squares and serve!
Common Mistakes to Avoid
- Using yellow or green bananas: Banana baked goods require bananas that are heavily speckled with brown or black spots. Underripe bananas lack the necessary moisture and natural sugars to make these bars soft and flavorful.
- Overmixing the batter: Once you add the flour, stir as little as possible. Overmixing develops the gluten in the flour, which will make your bars tough and rubbery instead of soft and tender.
- Slicing them while hot: It is tempting, but slicing these bars straight out of the oven will result in a crumbly, gooey mess. Let them cool completely so the crumb can set!
Can I substitute the all-purpose flour for whole wheat flour?
Using 100% whole wheat flour will result in a much denser texture. Consider mixing half whole wheat flour with half all-purpose flour for a much better balance of hearty flavor and a tender, soft texture.
How long do these Banana Bread Bars stay fresh?
When stored properly in an airtight container, the bars will stay fresh for up to five days at room temperature, or up to a week in the refrigerator.
Can I freeze these bars?
Yes! These bars freeze beautifully. Once they are completely cool, cut them into individual squares, wrap them tightly in plastic wrap, and store them in a freezer-safe zip-top bag for up to 3 months. Let them thaw at room temperature before eating.
