Chocolate Banana Cardamom Cake You Can Bake in One Bowl

Written by Aarushi Agrawal | September 23, 2025

If you’re looking for a deeply flavorful, easy to make treat that warms your kitchen and your soul, this chocolate banana cardamom cake is the answer. It’s the kind of recipe that feels cozy and indulgent without requiring a sink full of dishes or fancy equipment. Moist bananas, rich cocoa, and the subtle citrusy spice of cardamom come together in a one bowl wonder that’s as delightful for weekday snacking as it is for entertaining. No stand mixer, no stress, just a wooden spoon, a bowl, and a craving for something delicious.

Ingredients:

• 1 cup (125 g) all purpose flour
• ½ cup (50 g) unsweetened cocoa powder
• ¾ teaspoon ground cardamom
• 1 teaspoon baking soda
• ¼ teaspoon salt
• 3 medium ripe bananas (about 1 ¼ cups mashed)
• ½ cup (100 g) brown sugar
• ¼ cup (60 ml) neutral oil (like sunflower or canola)
• ¼ cup (60 ml) whole milk or plant based milk
• 2 large eggs
• 1 teaspoon vanilla extract
• Optional add-ins:
  • ½ cup (90 g) dark chocolate chips or chopped dark chocolate
  • ¼ cup chopped walnuts or pecans
  • Pinch of flaky sea salt for topping

Method:

1. Preheat your oven to 350°F or 175°C.
2. Grease a loaf pan with oil or butter and line it with parchment paper, leaving some overhang to lift the cake out easily after baking.
3. In a large bowl, mash the ripe bananas with a fork until mostly smooth, with just a few small chunks for texture. You should have about 1 ¼ cups of mashed banana
4. To the mashed bananas, add the brown sugar, oil, milk, eggs, and vanilla extract. Whisk everything together until fully combined and slightly frothy. The mixture should be smooth and glossy.
5. Place a fine mesh sieve over the bowl and sift in the flour, cocoa powder, baking soda, ground cardamom, and salt. Sifting helps avoid lumps, especially with cocoa powder. If you don’t have a sieve, you can whisk the dry ingredients in a separate bowl and then add them in, but since you’re making it in one bowl, sifting directly into the wet mixture works just fine.
6. Using a spatula or wooden spoon, fold the dry ingredients into the wet mixture until just combined. Be careful not to overmix, stopping as soon as you no longer see streaks of flour. The batter will be thick and rich, almost like brownie batter.
7. If using, fold in chocolate chips and/or nuts. They add lovely texture and flavor, but the cake is just as delicious on its own.
8. Pour the batter into your prepared loaf pan and smooth the top. If you’d like, sprinkle a few extra chocolate chips or a pinch of flaky salt on top for a bakery style finish.
9. Bake on the center rack for 60 minutes, or until a toothpick inserted into the center comes out with just a few moist crumbs. Start checking around 50 minutes. The top should be cracked and slightly domed, and your kitchen should smell like chocolate and cardamom.
10. Let the cake cool in the pan for 15 minutes, then use the parchment overhang to lift it out onto a wire rack. Cool completely before slicing.
11. This cake stays moist for several days when stored in an airtight container at room temperature. It also freezes beautifully, just wrap slices individually and thaw as needed.

Notes:

• Overripe bananas are key. The darker and softer, the better. They add both sweetness and moisture to the cake.
• Cardamom adds a subtle citrusy warmth that complements the banana and chocolate beautifully. If you’re unsure about the flavor, start with ½ teaspoon and increase to taste.
• For a vegan version, replace the eggs with 2 tablespoons of ground flaxseed mixed with 6 tablespoons of water, which you’ve let sit for 5 minutes. Use plant based milk and dairy free chocolate chips.
• You can also use unsalted butter if you don’t have oil. Make sure it’s not cold, as cold butter is stiff and won’t mix in properly with the batter, leading to clumpy batter and uneven baking. Room temperature butter is just right for mixing. So let the cold butter sit out at room temperature for about 20 minutes before you add it in. If you’re in a pinch you can melt it slightly but don't use melted butter either, since it’s liquid and will thin out your batter too much.