Black Rice Dessert Recipe: Deep Purple Velvet With Coconut Swirl

This black rice dessert recipe transforms humble grains into a luxurious, deep purple velvet cake with a creamy coconut swirl—rich, earthy, and impossibly tender.

The secret lies in soaking the rice overnight to develop its natural nuttiness, then blending it into a smooth batter that bakes into a dense, fudgy texture. What sets this apart is the coconut swirl, which adds a tropical brightness that balances the rice's deep flavor.

The result is a dessert that looks as striking as it tastes—velvety layers of black rice cake with golden coconut swirls peeking through. Perfect for special occasions or when you want to impress, this recipe delivers restaurant-quality dessert without the fuss. Let's create something truly unforgettable.

Ingredients for black rice dessert

Transform humble black rice into a luxurious dessert with just these 13 ingredients.

The black rice is the star—look for well-packaged, organic varieties at stores like Whole Foods or Trader Joe's. The full-fat coconut milk (the canned kind, not carton) is crucial for that velvety texture. I always grab mine from Costco when doing bulk baking—it's cheaper and keeps well. For the chocolate chips, Ghirardelli 70% cocoa gives the best balance of richness and bitterness without overpowering the rice's earthy notes. Soak the rice overnight in the almond milk (I use Silk brand for consistency), then blend until completely smooth—no grit should remain.

No full-fat coconut milk? Substitute with heavy cream plus 1 tbsp coconut oil, but the texture won't be quite as luxurious. Running short on almond milk? Oat milk works too, though it's slightly thicker. The vanilla extract can be swapped for vanilla bean paste at half the amount if you want extra depth. For the coconut swirl, if you can't find sweetened shredded coconut, toast unsweetened and mix with 1 tsp maple syrup. The food coloring is optional but helps achieve that restaurant-quality purple hue—Wilton brand is my go-to for vibrant colors. Prefer less sweetness? Reduce the sugar by 2 tbsp and add 1 extra egg for structure.

Store the dry cake mix in an airtight container for up to 3 days—it's best fresh, but the batter keeps well. The coconut swirl mixture can be prepped ahead and refrigerated for 2 days before baking. Once baked, this dessert keeps at room temperature for 2 days or refrigerated for 5 days. For special occasions, I always bake it a day ahead—flavors meld beautifully overnight. The purple color intensifies as it cools, so don't be alarmed if it looks lighter right out of the oven. Freeze slices for up to 3 months between parchment paper.

Step-by-step instructions for black rice dessert

Transform black rice into a velvety purple dessert with coconut swirls using precise technique.

Rinse the 1.5 cups black rice thoroughly under cold water until the water runs clear. This removes excess starch that can make the dessert gummy. Drain completely and transfer to a medium saucepan with 2 cups unsweetened almond milk. Bring to a gentle boil over medium heat, then reduce to a simmer for 25-30 minutes until the rice absorbs all the liquid and becomes tender.

Mash the cooked rice with a potato masher until smooth—you want a thick, pudding-like consistency. Return the pan to low heat and stir in 1.5 cups granulated sugar and 2 tsp vanilla extract. Cook for 5-7 minutes while stirring constantly until the sugar fully dissolves and the mixture thickens slightly. Remove from heat and let cool to room temperature.

In a separate bowl, whisk together 13.5 oz full-fat coconut milk (chilled overnight) with 0.5 tsp salt until smooth. Gently fold in 1 cup shredded sweetened coconut and 0.5 cup dark chocolate chips, reserving a few for garnish. For the signature purple hue, add 0.5 tsp purple food coloring (optional) and stir until evenly distributed.

Transfer the coconut mixture to a piping bag fitted with a star tip. Chill in the refrigerator for 30 minutes to firm up slightly—this ensures clean swirls when you pipe it into the batter later. The filling should be thick but still pipeable, like a firm whipped cream consistency.

In a large mixing bowl, beat the 4 whole large eggs (room temperature) with an electric mixer on medium speed for 3 minutes until pale and slightly thickened. Gradually add 1 cup room-temperature unsalted butter while mixing until fully incorporated. Sift in 1.5 cups all-purpose flour and 1 tbsp baking powder, mixing on low speed just until combined—overmixing develops gluten and makes the dessert dense.

Fold in the cooled black rice mixture using a spatula until just combined. Pour half of the batter into an 8-inch round cake pan lined with parchment paper. Pipe swirls of the chilled coconut mixture directly onto the batter, then top with the remaining batter. Use the spatula to gently swirl the top for a marbled effect. Sprinkle reserved shredded coconut and chocolate chips on top for texture.

Preheat the oven to 350°F. Bake the dessert for 35-40 minutes until the edges are golden brown and a toothpick inserted in the center comes out clean. The internal temperature should reach 200°F—this ensures the center is fully set without drying out.

Let the dessert cool in the pan for 10 minutes, then transfer to a wire rack to cool completely. For the best texture, refrigerate for at least 2 hours before slicing. The contrast between the rich purple velvet and creamy coconut swirls makes this dessert visually stunning and irresistibly delicious.

Dietary considerations for these flavors

Gluten-Free Adaptation

Swap the 1.5 cups all-purpose flour for a 1:1 gluten-free baking blend like Bob's Red Mill or King Arthur. These blends contain xanthan gum, which mimics gluten’s structure for a tender crumb. If using a blend without gum, add ½ tsp xanthan gum directly to the dry ingredients.

For extra moisture, reduce the almond milk by 2 tbsp—gluten-free batters tend to dry out faster. 🌾

Vegan-Friendly Swaps

Replace the 4 eggs with 4 flax eggs (mix 1 tbsp ground flaxseed + 3 tbsp water per egg) or ¼ cup aquafaba per egg. For the 1 cup butter, use 1 cup coconut oil (solid at room temperature) or vegan butter like Miyoko’s.

The coconut swirl remains dairy-free—just ensure your chocolate chips are vegan-certified. The texture stays rich, though slightly denser. 🌱

Lower Sugar Options

Reduce the 1.5 cups sugar by ¼ cup and add 2 tbsp monk fruit sweetener or 1 tbsp maple syrup for depth. Balance the flavor with an extra ½ tsp vanilla extract and ¼ tsp cinnamon in the black rice base.

For the coconut swirl, use sugar-free shredded coconut (like Lundberg) and dark chocolate chips with 85% cocoa. The dessert will be less sweet but equally satisfying. 🍯

Nut-Free Version

Replace the unsweetened almond milk with oat milk (like Oatly) or soy milk for a nut-free base. For the coconut swirl, use toasted pumpkin seeds instead of shredded coconut—toss ½ cup seeds with 1 tsp maple syrup and ½ tsp cinnamon before baking.

The texture remains creamy, and the flavor shifts to a toasty, slightly sweet profile. 🎃

Dairy-Free Focus

Ensure all ingredients are dairy-free: use coconut milk (already included) for the swirl and vegan butter in the batter. For the black rice base, replace unsweetened almond milk with coconut milk (thinned with water if needed) to keep the dessert cohesive.

The result is a lusciously creamy, dairy-free dessert that still delivers on richness. 🥥

Allergen-Friendly Tips

For egg-free versions, use chickpea flour (mixed with ½ cup cornstarch) to replace the 1.5 cups flour—it adds binding without eggs. For soy-free, avoid soy milk and opt for oat or rice milk.

Always check labels on chocolate chips and coconut milk for hidden allergens like tree nuts or dairy traces. Cross-contamination risks are highest with nuts and gluten, so use separate utensils and pans when possible. 🛡️

Frequently asked questions