Fudgy Japanese-Inspired Chocolate Squares

Featured in: Sweet Treats for Every Occasion

These delightful chocolate mochi brownies blend Japanese rice flour with rich cocoa for a uniquely chewy, fudgy texture. Simply whisk together mochiko flour, cocoa powder, sugar, and baking powder before combining with melted butter, eggs, milk, and vanilla. The batter bakes into gorgeously soft, slightly bouncy squares with an irresistible chocolate flavor that intensifies with the addition of chopped dark chocolate on top. The result is a wonderfully different dessert experience that's both familiar and excitingly new.

sana kitchen chef
Updated on Sun, 06 Apr 2025 22:58:42 GMT
A square of chocolate cake on a wooden tray. Pin it
A square of chocolate cake on a wooden tray. | recipebyme.com

This mochi brownie recipe combines the fudgy goodness of chocolate with the uniquely chewy texture of mochi. I discovered this treat when looking for a gluten-free alternative to traditional brownies, and it's now become my go-to dessert for impressing friends who think they've tried every brownie variation.

I first made these during a rainy weekend baking session, looking for something different to satisfy my chocolate cravings. The unexpected texture completely won me over, and now I make them whenever I want a conversation-starting dessert.

Ingredients

  • Mochiko flour: Gives these brownies their signature chewy texture and is essential for authentic results
  • Unsweetened cocoa powder: Provides deep chocolate flavor without excessive sweetness
  • Granulated white sugar: Balances the cocoa while helping create that shiny top
  • Baking powder: Gives just enough lift without making them cakey
  • Unsalted butter: Adds richness and moisture look for European style for extra richness
  • Large eggs: Bind everything together while contributing to the fudgy texture
  • Whole milk: Creates the perfect moisture level use full fat for best results
  • Vanilla extract: Enhances the chocolate flavors use pure not imitation
  • Chopped dark chocolate pieces: Create pockets of intense chocolate flavor choose 70% cocoa for best results

Step-by-Step Instructions

Prepare the Baking Pan:
Preheat your oven to exactly 350°F and line an 8x8 inch baking pan with parchment paper leaving overhang on the sides for easy removal. The parchment prevents sticking and makes cleanup effortless.
Mix the Dry Ingredients:
In a medium bowl combine the mochiko flour cocoa powder sugar and baking powder. Whisk thoroughly for at least 30 seconds to remove any lumps and ensure even distribution of the leavening agent. This prevents bitter spots from undistributed baking powder.
Combine the Wet Ingredients:
In a large bowl whisk together the melted butter eggs milk and vanilla extract until completely smooth and uniform in color. Make sure the butter has cooled slightly before adding to prevent cooking the eggs. The mixture should look smooth and glossy.
Create the Batter:
Add the dry ingredient mixture to the wet ingredients and whisk until fully incorporated about 1-2 minutes. The batter will be quite thin unlike traditional brownies this is normal. Continue whisking until no dry pockets remain and the mixture has a uniform chocolate color.
Bake to Perfection:
Pour the batter into your prepared pan and sprinkle the chopped chocolate evenly across the top. Bake for 60-70 minutes watching carefully after the one-hour mark. The brownies are done when the edges begin to pull away slightly from the pan and a toothpick inserted comes out mostly clean with a few moist crumbs. Allow to cool completely for at least 2 hours before cutting.
A square of chocolate cake. Pin it
A square of chocolate cake. | recipebyme.com

My favorite part about these brownies is the contrast between the intensely chocolate interior and the slightly crisp top. The first time I served them at a dinner party, my friends spent twenty minutes discussing what made them so different and special before I revealed the secret ingredient was mochi flour.

The Magic of Mochiko

Mochiko is sweet rice flour sometimes labeled glutinous rice flour though it contains no gluten. It gives these brownies their signature chewy texture that gets even better the next day. The starch molecules in mochiko create a unique structure that sets these brownies apart from traditional wheat flour versions. If you can find it, Japanese brand mochiko is the most authentic, but any sweet rice flour will work.

Storage Instructions

These mochi brownies actually improve with time. Store them in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. The refrigeration intensifies the chewy texture, making them even more like traditional mochi. You can also freeze them for up to 3 months just wrap individual pieces tightly in plastic wrap and then place in a freezer bag. Let thaw at room temperature for about an hour before enjoying.

Serving Suggestions

While delicious on their own, these mochi brownies pair wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream to balance their richness. For an extra special treat, dust them with a little powdered sugar just before serving, or drizzle with caramel sauce. They make an excellent accompaniment to afternoon tea or coffee, and their unique texture is always a conversation starter.

A square of chocolate cake on a plate. Pin it
A square of chocolate cake on a plate. | recipebyme.com

These chewy mochi brownies are a must-try for any dessert lover, uniquely combining texture and flavor in an unforgettable way.

Frequently Asked Questions

→ What is mochiko flour?

Mochiko flour is sweet rice flour (also called glutinous rice flour) made from short-grain Japanese rice. Despite its name, it doesn't contain gluten but gets its name from its sticky, chewy texture when cooked. It's the key ingredient that gives these brownies their distinctive chewy, bouncy texture.

→ Can I substitute regular flour for mochiko flour?

No, regular all-purpose flour cannot be substituted for mochiko flour in this recipe. The unique chewy texture comes specifically from the glutinous rice properties of mochiko. You can find mochiko flour in Asian grocery stores or in the international aisle of many supermarkets.

→ Why do these brownies need to bake so long?

The 60-70 minute baking time is necessary because mochiko flour creates a very moist batter that needs extended baking to set properly. The longer baking time ensures the center sets while developing the characteristic chewy texture. Don't worry - they won't dry out like traditional flour-based brownies would with this baking time.

→ How should I store mochi brownies?

Store mochi brownies in an airtight container at room temperature for up to 3 days. They can also be refrigerated for up to a week, though the texture will become firmer when cold. You can microwave refrigerated brownies for 10-15 seconds to restore their soft, chewy texture.

→ What's the texture difference between these and regular brownies?

Unlike traditional brownies which are dense and fudgy but crumbly, mochi brownies have a uniquely chewy, slightly bouncy texture with a tender bite. They're less crumbly and have a pleasant elasticity from the mochiko flour while still delivering rich chocolate flavor. The texture is somewhat similar to mochi desserts but with the rich flavor profile of brownies.

→ Can these brownies be frozen?

Yes, mochi brownies freeze well. Cut them into portions, wrap individually in plastic wrap, then place in a freezer bag. They can be frozen for up to 3 months. Thaw at room temperature or microwave from frozen for 20-30 seconds for a quick dessert.

Chewy Chocolate Mochi Brownies

Fudgy, chewy squares made with mochiko rice flour and rich cocoa for a delightful Japanese-inspired chocolate treat.

Prep Time
15 Minutes
Cook Time
65 Minutes
Total Time
80 Minutes
By: Sana

Category: Desserts & Sweets

Difficulty: Intermediate

Cuisine: Japanese-American Fusion

Yield: 9 Servings (9 square brownies)

Dietary: Vegetarian

Ingredients

01 1 cup mochiko flour
02 1/2 cup unsweetened cocoa powder
03 1 cup granulated white sugar
04 1 1/2 teaspoons baking powder
05 5 tablespoons unsalted butter, melted
06 2 large eggs
07 12 ounces whole milk
08 1 teaspoon vanilla extract
09 3 tablespoons chopped dark chocolate

Instructions

Step 01

Preheat the oven to 350°F (175°C). Line an 8 by 8-inch (20 by 20 cm) baking pan with parchment paper.

Step 02

In a medium bowl, whisk together mochiko flour, cocoa powder, sugar and baking powder until evenly combined.

Step 03

In a large bowl, whisk together melted butter, eggs, milk, and vanilla extract until smooth and no egg streaks remain.

Step 04

Add the dry ingredients to the wet mixture. Mix until thoroughly blended into a smooth batter.

Step 05

Pour batter into the prepared baking pan. Sprinkle the chopped chocolate evenly across the surface. Bake for 60-70 minutes, or until the mochi is set and a toothpick inserted comes out mostly clean.

Step 06

Allow the mochi brownies to cool completely before slicing and serving.

Tools You'll Need

  • 8-inch square baking pan
  • Parchment paper
  • Mixing bowls
  • Whisk
  • Toothpick

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy
  • Contains eggs
  • May contain gluten depending on mochiko flour source

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 210
  • Total Fat: 6.5 g
  • Total Carbohydrate: 35 g
  • Protein: 4.2 g