Ingredients
Equipment
Method
Prepare Your Bananas and Oven
- Take 1-2 of your ripe bananas and place them on a baking sheet. Roast them in a 375 degree F oven for about 10-15 minutes, or until their skins are dark and the bananas are soft and slightly caramelized. Let them cool slightly, then mash these roasted bananas along with your remaining fresh mashed bananas.
- Preheat your oven to 375 degrees F and grease a 9x13 inch pan with non-stick cooking spray. This ensures your banana bread brownies will release easily after baking.
Mix the Wet Ingredients
- In a large bowl, begin by creaming together the granulated sugar and softened butter until the mixture is light and fluffy.
- Next, beat in the Greek yogurt or sour cream, then the eggs, the mashed bananas (both roasted and fresh), and the vanilla extract. Mix until everything is well combined and smooth.
Combine and Bake
- Add the all-purpose flour, baking soda, and salt to the wet ingredients. Mix just until moistened. It is crucial to avoid overmixing the batter, as this can develop the gluten in the flour too much, leading to tough, dry brownies instead of the fudgy ones we want. If you are using chopped walnuts, pecans, or chocolate chips, gently stir them in now.
- Spread the batter evenly into your prepared 9x13 inch pan. Bake for 23-28 minutes, or until a toothpick inserted in the center comes out clean or with just a few moist crumbs.
Make the Brown Butter Frosting
- For the brown butter frosting, heat the 4 tablespoons of butter in a large skillet over medium heat. Watch it carefully as it melts and begins to simmer. Allow it to cook until it starts to turn a delicate brown, and your kitchen fills with a wonderful nutty aroma. Remove it from the heat immediately to prevent it from burning.
- Whisk in the powdered sugar, vanilla extract, and 1 tablespoon of milk until the frosting is smooth. If you find the frosting is too thick, add a little more milk, a half teaspoon at a time, until you reach your desired spreading consistency. If it's too thin, gradually whisk in a bit more powdered sugar.
Frost and Finish
- As soon as the brownies come out of the oven, pour the warm brown butter frosting over the warm bars. Spread it gently with the back of a spoon to create an even layer.
Nutrition
Notes
Do not skip the roasted banana twist for deep flavor and fudgy texture. Watch butter carefully when browning for frosting to avoid burning. Use the toothpick test for perfect doneness. Store at room temperature for 2-3 days or refrigerate up to 5-7 days. These brownies freeze well for up to 3 months. Enjoy warm or at room temperature, perhaps with coffee or ice cream. Nutrition information is estimated based on common ingredients and serving sizes and may vary.