Banana Cake Mauritian Recipe: Spiced Rum Infusion and Coconut Frosting Magic

This Mauritian banana cake recipe brings the warm, spiced flavors of the Indian Ocean straight to your kitchen—where ripe bananas, fragrant spices, and a touch of rum create something truly special. 🌴 The secret lies in the slow-cooked spiced rum infusion that transforms ordinary cake into a moist, aromatic masterpiece, while coconut frosting adds that signature tropical touch.

Traditional Mauritian baking often incorporates local ingredients like vanilla, cardamom, and cinnamon to create depth of flavor, while the cake itself benefits from a gentle steaming process that keeps it tender. The result? A cake that's rich, fragrant, and perfectly balanced—ideal for serving with a cup of chai or fresh tropical fruit.

What makes this recipe stand out is the harmony of textures: a moist, spiced crumb that stays tender even after baking, paired with a smooth coconut frosting that adds a velvety finish. The rum infusion doesn't just add flavor—it elevates the cake to something truly memorable, making every slice feel like a taste of Mauritius.

Whether you're baking for a special occasion or simply craving a slice of comfort, this recipe delivers restaurant-quality results with minimal fuss. The best part? It's a cake that improves with time, so you can enjoy it fresh or save leftovers for days. Let's get baking!

Ingredients for banana cake mauritian

Spiced rum-infused bananas and tropical coconut frosting create this Mauritian masterpiece.

The bananas should be deeply speckled and slightly soft—think overripe, not mushy. Local markets or Caribbean grocers often have the best selection of ripe tropical fruit. For the rum, Amarula or Plantation Original add authentic depth, but any aged dark rum works. The coconut milk? Full-fat canned is non-negotiable—the creaminess is essential for both the cake's moisture and the frosting. Cardamom is key here: buy whole pods and grind them fresh if possible, or use the highest-quality ground version you can find. The spices should be fragrant and vibrant—if they smell dull, they've lost their potency.

No dark rum? Spiced apple cider or extra vanilla extract can mimic the depth, though the alcohol helps tenderize the cake. Substituting coconut milk? Full-fat Greek yogurt or sour cream works in a pinch, but the flavor won't be authentic. For the frosting, powdered sugar should be sifted to avoid graininess—Domino brand works best. The condensed milk adds richness, but if you're avoiding it, whipped coconut cream can replace half of it. All-purpose flour is standard, but bread flour adds structure if you want a denser crumb. The baking powder must be fresh—test it by mixing with water (should bubble immediately).

Store the cake in an airtight container at room temperature for up to 4 days, though it's best enjoyed within 2 days for maximum moisture. The frosting keeps 3 days in the fridge, covered tightly. Freeze portions for up to 3 months—thaw at room temperature before serving. For serving, lightly toast coconut flakes and sprinkle over slices for extra texture. The rum-infused cake actually improves overnight as the flavors meld, so bake it the day before if possible for restaurant-quality results.

Step-by-step instructions for banana cake with Mauritian spices

Master the art of this rich, rum-infused cake with warm spices and velvety coconut frosting.

In a large mixing bowl, mash the 3 medium ripe bananas until completely smooth with no lumps remaining. The texture should resemble thick pudding—this ensures even distribution throughout the batter. Add the 1 cup unsalted butter (room temperature) and mix until fully incorporated, creating a creamy base.

In a separate small bowl, whisk together the 2 whole large eggs, 1 tbsp pure vanilla extract, 0.5 cup dark rum, and the 1.5 cups granulated sugar until the mixture lightens slightly in color. This step aerates the wet ingredients, creating a lighter final texture. Slowly pour this mixture into the banana-butter combination while mixing on low speed.

In a medium bowl, sift together the 2.5 cups all-purpose flour, 1.5 tsp baking powder, 0.5 tsp salt, 1.5 tsp ground cinnamon, 0.5 tsp ground cardamom, and 0.25 tsp ground nutmeg. The sifting process prevents lumps and ensures even distribution of the spices throughout the batter. Gently fold this dry mixture into the wet ingredients using a spatula, mixing just until combined—overmixing develops gluten and can result in a dense cake.

For the Mauritian twist, add the 0.5 cup light brown sugar (packed) to the batter and mix until fully incorporated. The brown sugar adds moisture and a deeper caramel flavor that pairs beautifully with the rum and spices. The batter should be thick but pourable—if it appears too stiff, you can add 1-2 tablespoons of coconut milk to adjust the consistency.

In a small saucepan, combine the 13.5 oz coconut milk, 0.5 cup sweetened condensed milk, and 2 cups powdered sugar. Heat the mixture over medium-low heat while stirring constantly for 5-7 minutes until it thickens to a spreadable consistency. You'll know it's ready when it coats the back of a spoon smoothly—this should take about 5 minutes of gentle simmering.

Remove the frosting from heat and let it cool completely before spreading. For extra richness, you can whisk in 1-2 tablespoons of the reserved rum from the cake batter. This step creates the signature Mauritian coconut frosting that balances the spiced cake with sweet, creamy contrast. Keep the frosting at room temperature until ready to use.

Preheat your oven to 350°F and grease two 9-inch round cake pans (or line them with parchment paper). Divide the batter evenly between the pans and smooth the tops with a spatula. Bake for 30-35 minutes or until a toothpick inserted into the center comes out clean and the edges are golden brown. The cake should spring back gently when pressed in the center—this indicates proper doneness.

For even cooking, rotate the pans halfway through the baking time. I like to place a baking sheet on the lower rack to catch any drips, as this rum-infused batter can be slightly sticky. Once baked, transfer the cakes to a wire rack and let them cool in the pans for 10 minutes before removing completely. This gradual cooling prevents cracking and maintains moisture.

Once completely cooled, level the tops of the cakes if necessary and place one layer on a serving plate. Spread a generous layer of the cooled coconut frosting over the top, then place the second cake layer on top. Frost the entire cake with the remaining frosting, creating a smooth finish. For extra presentation, you can pipe additional frosting around the edges or dust with a light layer of powdered sugar.

Slice the cake into 8 equal wedges and serve immediately. Each bite should deliver a harmonious blend of moist banana cake infused with warm spices and rum, contrasted by the cool, creamy coconut frosting. The cake keeps well at room temperature for 2 days or can be refrigerated for up to 5 days—though I doubt it will last that long!

Flavor customization for this banana cake mauritian

Spice Intensity

Adjust the spice levels to suit your taste—Mauritian baking often balances warmth with sweetness. For a milder version, reduce the cardamom to ¼ tsp and nutmeg to ⅛ tsp, keeping cinnamon at 1 tsp. If you love bold flavors, increase cardamom to 1 tsp and add ½ tsp ground cloves for depth. I find Amarula rum enhances spice complexity naturally. 🌶️

Rum Variations

Skip the rum? No problem—replace it with ½ cup apple cider for a non-alcoholic twist, or use 1 tsp vanilla bean paste for extra depth. For a stronger rum flavor, steep 2 tbsp dark chocolate chips in the rum before adding to the batter. The alcohol tenderizes the cake, but if avoiding it, add 1 extra tbsp coconut milk to maintain moisture.

Coconut Frosting Tweaks

Make your frosting lighter by replacing ½ cup coconut milk with whipped coconut cream (chilled overnight). For a darker frosting, add 1 tbsp cocoa powder or 1 tsp instant coffee granules. To avoid graininess, always sift the powdered sugar—I use Domino brand for the smoothest texture. A splash of lime juice brightens the flavor beautifully.

Texture Adjustments

Want a denser crumb? Swap ½ cup flour for bread flour and reduce coconut milk by 2 tbsp. For a lighter cake, fold ½ cup whipped egg whites into the batter before baking. If your cake browns too quickly, tent loosely with aluminum foil after 20 minutes of baking. The rum infusion makes the cake moist longer, but for extra tenderness, brush warm layers with 2 tbsp extra rum after baking.

Fruit Add-Ins

Add ½ cup chopped dates or ¼ cup raisins for natural sweetness and texture contrast. For a tropical twist, fold in ½ cup diced mango or ¼ cup toasted coconut flakes. I love adding 1 tsp grated ginger to the batter for a zesty kick—it pairs perfectly with the rum and cardamom. Always chop fruit finely to avoid dense pockets in the cake.

Gluten-Free Option

Replace the 2.5 cups flour with 2 cups gluten-free 1:1 baking flour (like Bob's Red Mill) plus ½ cup cornstarch. Add 1 extra tsp baking powder to compensate for lower protein. For binding, include ¼ cup ground almonds or tapioca starch. The texture will be slightly denser, but the flavors remain rich and moist. 💫

Frequently asked questions