Matcha cake design is the art of decorating a matcha-flavored cake with elegant, often Japanese-inspired patterns, from simple dusted stencils to intricate marbled swirls and piped lattices. This recipe uses a moist, tender matcha sponge with a light, not-too-sweet white chocolate matcha buttercream, creating a perfect canvas for your designs. The key is a high-quality culinary matcha that gives both vibrant color and a balanced, slightly bitter-sweet flavor that pairs beautifully with the sweet frosting.
Ingredients
- 2 cups (250 g) all-purpose flour
- 2 tbsp (15 g) culinary-grade matcha powder (plus extra for dusting)
- 1 tsp baking powder
- 1/2 tsp baking soda
- 1/2 tsp salt
- 1/2 cup (115 g) unsalted butter, softened
- 1 cup (200 g) granulated sugar
- 3 large eggs, at room temperature
- 1 tsp vanilla extract
- 1/2 cup (120 ml) buttermilk, at room temperature
- 1/2 cup (120 ml) whole milk, at room temperature
- For the buttercream:
- 1 cup (230 g) unsalted butter, softened
- 3 cups (360 g) powdered sugar, sifted
- 4 oz (115 g) white chocolate, melted and cooled
- 2 tbsp (30 ml) heavy cream
- 1 tsp matcha powder (for the matcha buttercream swirl)
Instructions
- Preheat your oven to 350°F (175°C). Grease and flour two 8-inch (20 cm) round cake pans, or line with parchment paper.
- In a medium bowl, whisk together the flour, matcha powder, baking powder, baking soda, and salt. Set aside.
- In a large bowl, beat the softened butter and sugar together with an electric mixer until light and fluffy, about 2-3 minutes. Add the eggs one at a time, beating well after each addition, then mix in the vanilla.
- With the mixer on low, add the dry ingredients in three additions, alternating with the buttermilk and milk, starting and ending with the dry ingredients. Mix until just combined; do not overmix.
- Divide the batter evenly between the prepared pans. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let the cakes cool in the pans for 10 minutes, then turn out onto a wire rack to cool completely.
- While the cakes cool, make the buttercream. In a large bowl, beat the softened butter until creamy. Gradually add the powdered sugar, beating on low speed until combined, then increase speed to medium and beat for 2 minutes. Add the melted white chocolate and heavy cream, and beat for another 2 minutes until light and fluffy.
- Reserve about 1/2 cup of the buttercream in a small bowl. Stir the 1 tsp of matcha powder into this reserved portion until well combined, creating a green buttercream for the design.
- Once the cakes are completely cool, level the tops with a serrated knife if needed. Place one layer on a serving plate, spread a layer of plain buttercream on top, then place the second layer on top. Crumb-coat the entire cake with a thin layer of plain buttercream and refrigerate for 20 minutes to set.
- Apply a final, smooth layer of plain buttercream to the cake. For a simple design, use a bench scraper to create a smooth finish, or use a spatula to create soft swirls.
- For a stenciled design, place a stencil (such as a leaf or geometric pattern) gently against the side or top of the cake, and dust with extra matcha powder using a fine-mesh sieve. Carefully lift the stencil off.
- For a marbled design, dot the matcha buttercream randomly over the top of the cake, then use a toothpick or skewer to swirl it through the white buttercream in a spiral or zigzag pattern.
- For a piped lattice, fill a piping bag fitted with a small round tip with the matcha buttercream. Pipe diagonal lines across the top of the cake, then pipe lines in the opposite direction to create a lattice. Refrigerate the cake for at least 30 minutes to set the design before slicing.
Tips
- Use culinary-grade matcha, not ceremonial. Ceremonial grade is more delicate and expensive; culinary grade is designed for baking and gives a stronger color and flavor. If you only have ceremonial, use a bit less (about 1.5 tbsp) to avoid bitterness.
- Don’t overmix the batter. Overmixing develops gluten, which can make the cake tough. Mix until the flour just disappears.
- Cool the cake completely before frosting. If the cake is even slightly warm, the buttercream will melt and slide off. For a clean stencil design, ensure the frosting is firm by chilling the cake for 30 minutes before dusting.
- Make a test stencil. If you’re using a stencil, practice on a piece of parchment paper first to get the right amount of matcha dusting—too much and it will be bitter, too little and the pattern won’t show.
Serving Suggestions
Serve this matcha cake as a centerpiece for an afternoon tea party, a Japanese-inspired dessert table, or a birthday celebration. It pairs beautifully with a cup of sencha or genmaicha tea, or a simple glass of cold milk. For a more indulgent dessert, serve with a scoop of vanilla ice cream or a dollop of lightly sweetened whipped cream.
Variations
- Matcha and red bean: Add a layer of sweetened red bean paste (anko) between the cake layers for a classic Japanese combination.
- Lemon-matcha: Add 1 tablespoon of lemon zest to the cake batter and use lemon juice instead of vanilla in the buttercream for a bright, citrusy twist.
- Gluten-free: Substitute the all-purpose flour with a 1:1 gluten-free baking flour blend. The texture will be slightly more crumbly but still delicious.
- Vegan: Use plant-based butter and buttermilk (mix 1 tbsp lemon juice with 1/2 cup non-dairy milk), and use a flax egg (1 tbsp ground flaxseed mixed with 3 tbsp water per egg). Use vegan white chocolate or skip it and add a bit more powdered sugar.
Storage and Reheating
Store the matcha cake in an airtight container in the refrigerator for up to 4 days. The matcha color may fade slightly over time, but the flavor stays fresh. Let the cake sit at room temperature for 20-30 minutes before serving to soften the buttercream. This cake is best served at room temperature; do not microwave it, as the buttercream will melt. You can freeze the unfrosted cake layers, wrapped tightly in plastic wrap and foil, for up to 2 months. Thaw in the refrigerator overnight before frosting.
Frequently Asked Questions
Can I use coconut milk instead of buttermilk? Yes, you can use a dairy-free buttermilk substitute by adding 1 tablespoon of lemon juice or vinegar to 1/2 cup of coconut milk and letting it sit for 5 minutes. This will work in the recipe, but the cake may be slightly less tender.
Why did my matcha cake turn brown? Matcha is sensitive to heat and can oxidize, turning brown. To prevent this, use high-quality culinary matcha, don’t overbake, and avoid using baking soda in excess. Also, store the matcha powder in an airtight container away from light.
Can I make this cake in a sheet pan? Yes, you can bake the batter in a 9×13-inch (23×33 cm) pan. Adjust the baking time to 25-35 minutes, or until a toothpick comes out clean. You can then cut it into squares and decorate each piece individually.
How do I get a smooth buttercream finish? The key is to have a slightly soft buttercream and a bench scraper. Apply a generous amount of buttercream to the cake, then hold the scraper at a 45-degree angle and rotate the cake while scraping off the excess. Chill the cake for 10 minutes, then repeat with a second thin layer for a perfectly smooth finish.
Can I use a different type of white chocolate? Yes, but make sure it’s real white chocolate that contains cocoa butter, not white chocolate chips that are often made with palm oil. Real white chocolate melts smoothly and gives a richer flavor.
Is it okay to eat raw matcha powder? Yes, matcha is a finely ground green tea powder and is safe to eat raw. However, it’s best to use culinary-grade matcha for baking and dusting, as it’s specifically processed for that purpose.
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