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Buttermilk Banana Cake

A banana cake being sliced into pieces on a blue plate
Photograph by Isa Zapata, Food styling by Jesse Szewczyk, prop styling by Dayna Seman
  • Total Time

    1 hour 10 minutes (plus cooling)

Ripe bananas can become more than just banana bread, as this simple but striking cake proves. With its plush, cardamom-scented crumb and creamy, salt-sprinkled glaze, it’s an elevated spin that’s equally at home for breakfast or dessert. The cake’s instant popularity among BA staff is enough to tell me it will be a winner wherever this recipe finds you.

为彻底混合(特别是如果你的香蕉aren’t entirely ripe yet), place the fruit in a zip-top bag and mash with your hands to create a pulpy, baby-food-like consistency. Some small lumps are okay, but a smoother mash begets a fluffier cake. Don’t forget: It’s important to add the dry ingredients in stages to ensure even distribution and prevent overmixing, which would result in a tough outcome.

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What you’ll need

Ingredients

8–10 servings

½ cup (1 stick) unsalted butter, room temperature, plus more for pan
2 cups (250 g) all-purpose flour
½ tsp. baking powder
½ tsp. baking soda
½ tsp. Diamond Crystal or ¼ tsp. Morton kosher salt, plus more
½ tsp. ground cardamom, plus more for sprinkling
¾ cup (150 g) granulated sugar
¾ cup (packed; 150 g) light brown sugar
2 large eggs, room temperature
1½ tsp. vanilla extract, divided
2 ripe bananas, peeled, flesh finely mashed
1¼ cups buttermilk, room temperature, divided
1½ cups (165 g) powdered sugar
Flaky sea salt
  1. Step 1

    Preheat oven to 350°. Butter a 9"-diameter cake pan; line the bottom with a parchment paper round. Butter parchment. Whisk2 cups (250 g) all-purpose flour,½ tsp. baking powder,½ tsp. baking soda,½ tsp. Diamond Crystal or ¼ tsp. Morton kosher salt,and½ tsp. ground cardamomin a medium bowl.

    Step 2

    Beat½ cup (1 stick) unsalted butter, room temperature,¾ cup (150 g) granulated sugar, and¾ cup (packed; 150 g) light brown sugarin the bowl of a stand mixer fitted with the paddle attachment on high speed until pale and fluffy, about 3 minutes. Reduce speed to medium and mix in2 large eggs, room temperatureand1 tsp. vanilla extract, then2 ripe bananas, peeled, flesh finely mashed, scraping down sides of bowl as needed.

    Step 3

    Reduce speed to medium-low and mix in half of dry ingredients, then beat in1 cup buttermilk, room temperature. Using a rubber spatula, mix in remaining dry ingredients, making sure to scrape bottom of bowl so everything gets incorporated.

    Step 4

    Scrape batter into prepared pan and smooth surface. Bake cake until golden brown, slightly puffed, and a tester inserted into the center comes out clean, 50–55 minutes. Transfer to a wire rack and let cool.

    Step 5

    Meanwhile, whisk1½ cups (165 g) powdered sugar, a pinch ofkosher salt, remaining¼ cup buttermilk, room temperature, and remaining½ tsp. vanilla extractin a small bowl to combine.

    Step 6

    Turn out cooled cake onto rack or a plate and turn right side up. Pour glaze over top of cake, then sprinkle withflaky sea saltand a pinch of cardamom.

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