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A bright green cake with fluffy white buttercream sandwiched between the layers and fresh strawberries on top is so stunning for almost any occasion. This simple matcha cake is made with green tea powder (also known as matcha), and baked in a single 8-inch square pan that you easily slice and stack and make a two layer loaf cake.

Up close vertical shot of bright green matcha cake with white frosting and fresh strawberries.

The bright green color of this matcha cake means that I make this cake at Christmas time, since itโ€™s so Grinch-like. I also think the red strawberries look so pretty next to the green cake crumb. However, this cake is also good in the springtime when you want something light and fresh.

The pleasant earthiness and delicate grassiness of matcha is something I happen to love. If you like my matcha tiramisu for two, you will love this cake!

Since weโ€™re a small batch dessert website, I have a trick for you to make a small layer cake! Weโ€™re going to bake this cake in an 8-inch square pan, slice it in half, and then stack the two rectangular pieces to make a loaf layer cake. With this small layer cake, you will get about 5 or 6 slices of cake. This is perfect for a dinner party, and is so much less intimidating to make than a whole layer cake!

A layer cake made from a loaf pan, decorated with frosting and strawberries.

Matcha Cake Ingredients

I really couldnโ€™t think of an easier way to make a layer cake than to use one pan to make one layer that you then slice and stack. The ingredients to this cake are super simple, too!

Small bowls of cake ingredients, including flour, butter, eggs, sugar and vanilla.
  • Butter. We need 7 tablespoons (just shy of one stick) of unsalted butter softened for the cake and another stick for the vanilla buttercream frosting. While nearly 2 sticks of butter sounds like a lot for a small cake, remember that this cake makes 5-6 slices of cake. A regular layer cake can use up to 4 sticks (or more), if it has lots of frosting!
  • Granulated Sugar. Just one cup of white granulated sugar.
  • Eggs. We need two whole eggs for this matcha cake recipe.
  • Vanilla. Pure vanilla extract compliments the green tea powder in this cake, and makes it taste like your favorite matcha latte.
  • Matcha. Another name for matcha is green tea powder. Itโ€™s super concentrated whole green tea leaves, ground finely. You can use culinary grade matcha powder for this cake, but ensure it has a bright green color. Ceremonial matcha is going to have the brightest green color, but it also happens to be the most expensive. Just make sure itโ€™s a vibrant green color, or else your cake will be a dark forest green after baking.
  • Flour. The same amount of flour as sugar, one cup.
  • Baking Powder. Weโ€™re using baking powder instead of baking soda so that the matcha stays bright green.
  • Buttermilk. Low-fat cultured buttermilk from the store is the best thing to use here. However, you can use 1/3 cup of whole milk with 1/2 teaspoon of fresh lemon juice or white vinegar instead.
  • Powdered Sugar. This sugar is for the vanilla buttercream that will top the matcha cake.
  • Heavy Cream. A big splash of heavy cream makes our frosting nice and fluffy.
  • Fresh Strawberries. Fresh berries are just for decoration and are completely optional, but I love the way the red strawberries and bright green cake give us Grinch vibes for Christmas.
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How to Make Matcha Cake

Weโ€™re using an 8-inch square pan, also known as the standard brownie pan. This simple matcha cake makes a single layer and only requires one pan. However, after baking, we will slice the square in half to make two rectangles. We will stack the rectangles with buttercream to get a small layer cake shaped like a loaf. From this, you will get 5 or 6 regular cake slices.

Bright yellow butter and granulated sugar beaten together in clear glass bowl.
Adding eggs, matcha powder and vanilla to cake batter in clear glass bowl.

First, preheat oven to 325, and line the bottom of an 8-inch square pan with parchment paper. Then, lightly spray the exposed sides of the lined pan with cooking spray. Next, in a medium-size bowl, using an electric mixer on medium speed, beat together the softened butter and sugar until light and fluffy, about 1-2 minutes.

Add the eggs, matcha powder and vanilla, and beat just until combined.

Clay bowl with flour, baking powder and whisk.
Adding flour to bright green cake batter.

In a separate small bowl, whisk together the flour and baking powder.

Add half of this flour mixture to the bowl, and stir to combine.

Adding buttermilk to bright green cake batter to make matcha cake.
Matcha cake batter in 8 inch square pan.

Add all of the buttermilk, and stir again. Finally, add the remaining half of the flour mixture and stir until no streaks of flour remain, but be careful not to overmix the batter.ย 

Scrape the batter into the prepared pan, and bake on the middle rack for 30-33 minutes, until a toothpick inserted comes out mostly clean with only moist crumbs (not wet batter).

Freshly baked square matcha cake in 8 inch metal pan.
Rectangular green cake being spread with white frosting.

Let the cake cool in the pan for about 15 minutes, until it starts to pull away from the edges of the pan. Then, run a knife around the edge of the cake, and lift it out of the pan and place on a cooling rack to cool completely. Once completely cool, slice the cake in half; this will make the square into two rectangles.

Next, make the vanilla buttercream frosting by combining the softened stick of butter with powdered sugar, vanilla, and the heavy cream. Whip until fluffy and light, at least 3 minutes. Alternatively, you could make my whipped cream cream cheese frosting. Spread some on top of the first rectangle. Stack and use remaining buttercream and strawberries to decorate the best matcha cake ever.

Side shot of a green layer cake made from a square pan.

This is what the cake will look like, since we made a layer cake from a square pan. You have a โ€˜loaf layer cakeโ€™, which is a term Iโ€™d like to copyright! From here, you can slice on a diagonal (in the same way you slice for my cheesecake in a loaf pan) to get 5 or 6 perfectly triangular cake slices. When serving, you can hardly tell the triangle cake slices werenโ€™t cut from a traditional round layer cake!

Close up shot of a matcha cake with white frosting and fresh red strawberries for garnish.

Storage

This cake is best eaten within a day or two. Leftovers should be stored in the fridge, since the frosting contains butter. Before serving a cake that has been refrigerated, let it rest at room temperature for about 15 minutes to soften slightly.

Equipment to Bake Matcha Cake:

  • Matcha Green Tea Powder โ€“ I am linking you to my favorite matcha to buy, but please note that you can buy whatever you like, as long as its vibrant green, high-quality culinary grade and fresh! Encha is my favorite brand, but taste many and find one that you like.
  • 8-Inch Square Pan โ€“ This is my favorite 8 inch pan, because the grooves on the bottom ensure itโ€™s truly nonstick.
  • Hand Mixer โ€“ This is my favorite hand mixer because it has its own carrying case.

Frequently Asked Questions:

What does matcha cake taste like?

This matcha cake tastes like a big sweet matcha latte. The cake has the same slightly grassy, earthy taste as matcha, and the frosting is similar to the sweet milk foam you would add to make a latte. Itโ€™s delicious, especially if add sweet strawberries!

Does matcha cake have caffeine? Can toddlers eat it?

So, one teaspoon of matcha contains about 50 milligrams of caffeine, and this cake calls for 4.5 teaspoons (1.5 tablespoons) of matcha. Since the cake is sliced into 6 pieces, that means each piece has about 37 milligrams of caffeine, nearly one whole teaspoon of matcha! This is similar to the amount in a matcha latte, and since caffeine does not โ€˜bake outโ€™ of a cake, I would not serve this to kids. If youโ€™re comfortable with your kids consuming one teaspoon of matcha powder, itโ€™s your choice. I am not available to help put them down for a nap after they eat an entire slice of cake.

Which matcha to buy for cake? How much matcha to add to cake?

Matcha comes in two forms: ceremonial (very fancy and very pricy) and culinary. Try to use the highest quality of culinary matcha for this cake. It should have a bright green color, never an olive dark green color. I donโ€™t recommend just adding matcha to a regular cake recipe. I recommend following the recipe below that calls for 1.5 tablespoons of matcha, because this will guarantee a bright green, vibrant cake.

Why is my matcha cake brown?

There are few ways to prevent matcha from oxidizing (turning brown). One, ensure you buy a vibrant green fresh matcha. Then, store the powder in an opaque, airtight container and keep it away from heat and light. Bake your cake immediately after the batter is mixed, and be careful not to over-bake. This recipe relies on baking powder (which is made up of two chemical leaveners) which means that two acids will hold the matcha at a vibrant green and prevent it from browning. This is similar to the way lemon juice prevents apple slices from oxidizing and turning brown. Please note that the edges of your cake might be slightly brown (see photo above for visual guide).

Other matcha recipes:

More Favorites from Dessert for Two

Yield: 6

Matcha Cake

Up close vertical shot of bright green matcha cake with white frosting and fresh strawberries.

A beautiful bright green matcha cake recipe made in a 8 inch square pan to make a loaf layer cake.

Prep Time 25 minutes
Cook Time 30 minutes
Total Time 55 minutes

Ingredients

  • 7 tablespoons (99 grams) unsalted butter, softened
  • 1 cup (200 grams) granulated sugar
  • 2 large eggs
  • 1 teaspoon (5 mL) vanilla extract
  • 1 1/2 tablespoons matcha powder
  • 1 cup (120 grams) all-purpose flour
  • 1 teaspoon baking powder
  • 1/3 cup buttermilk

For the frosting:

  • 1 stick (113 grams) unsalted butter, softened at room temperature
  • 2 cups (260 grams) powdered sugar, sifted
  • 1 1/2 teaspoons (7 mL) vanilla extract
  • 2 tablespoons (30 mL) heavy cream
  • Fresh strawberries, optional for garnish

Instructions

  1. Preheat oven to 325ยฐF, and line the bottom of an 8-inch square pan with parchment paper. Then, lightly spray the exposed sides of the lined pan with cooking spray.
  2. In a medium-size bowl, using an electric mixer on medium speed, beat together the softened butter and sugar until light and fluffy, about 1-2 minutes.
  3. Add the eggs, matcha powder and vanilla, and beat just until combined.
  4. In a small bowl, whisk together the flour and baking powder.
  5. Add half of the flour mixture to the bowl, and stir to combine.
  6. Add all of the buttermilk, and stir again.
  7. Finally, add the remaining half of the flour mixture and stir until no streaks of flour remain, but be careful not to overmix the batter.
  8. Scrape the batter into the prepared pan, and bake on the middle rack for 30-33 minutes, until a toothpick inserted comes out mostly clean with only moist crumbs (not wet batter).
  9. Let the cake cool in the pan for about 15 minutes, until it starts to pull away from the edges of the pan. Then, run a knife around the edge of the cake, and lift it out of the pan and place on a cooling rack to cool completely.
  10. Next, make the frosting: combine all frosting ingredients in a bowl. Then, beat all of the frosting ingredients together until light and fluffy.
  11. Slice the cake in half (from one square into two rectangles), and spread some buttercream on top of one half. Place the opposite cake half on top of the cake half with buttercream.
  12. Decorate the cake with powdered sugar, the remaining buttercream and fresh strawberries. Slice into 5 or 6 triangle slices and serve.

Notes

Storage: This cake is best eaten within a day or two. Leftovers should be stored in the fridge, since the frosting contains butter.

Nutrition Information:

Yield:

6

Serving Size:

1

Amount Per Serving: Calories: 288Total Fat: 21gSaturated Fat: 13gTrans Fat: 1gUnsaturated Fat: 7gCholesterol: 114mgSodium: 256mgCarbohydrates: 20gFiber: 1gSugar: 4gProtein: 5g

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About Christina Lane

Christina Lane is the author of 5 cookbooks all about cooking and baking for two. She has scaled down hundreds of recipes into smaller servings so you can enjoy your favorite dishes without the leftovers! Valentine's Day is her favorite holiday.

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19 Comments

  1. Jasmaya says:

    What temperature in a fan assisted oven pls. Thanks

  2. N/A says:

    the frosting is extremely sweet. i do not recommend using that recipe. the cake itself is delicious though.