Hawaiian Butter Mochi
When you think of comfort food wrapped in the warmth of island sweetness, Hawaiian Butter Mochi stands out like a sunny afternoon on the shores of Oahu. The moment you slice into its golden crust, your knife sinks into a chewy, custard-like center bursting with coconut flavor. Its irresistible aroma—rich with butter and toasted rice flour—fills the kitchen, and before you know it, the first square has disappeared, followed quickly by another. This isn’t just dessert, it’s pure aloha in a pan.
Behind the Recipe
This recipe holds a special place in many Hawaiian homes, often passed down through generations and brought to gatherings like a treasured jewel. My first experience with butter mochi was at a friend’s backyard luau, where a tray of these golden squares sat unassuming among vibrant poke and grilled pineapple. One bite, and I was hooked. It was chewy, custardy, slightly crisp on top—like nothing I’d ever tasted. Now, I make it every time I want to bring a bit of island magic to my table.
Recipe Origin or Trivia
Butter mochi is a beloved treat in Hawaii that reflects the state’s rich blend of cultures. Rooted in Japanese mochi traditions, it embraces Western baking influences by incorporating butter, sugar, and eggs, turning chewy rice cake into a cake-like delight. The secret ingredient? Sweet rice flour, or mochiko, which gives it that signature bounce. You’ll find it at school bake sales, potlucks, and even upscale cafes—proof that this humble square has become a staple across the islands.
Why You’ll Love Hawaiian Butter Mochi
This recipe isn’t just delicious—it’s everything you want in a homemade treat and more.
Versatile: Serve it warm, chilled, or at room temp—it’s delicious every way.
Budget-Friendly: With simple pantry staples, it won’t stretch your wallet.
Quick and Easy: Mix, pour, bake. No need for fancy equipment or steps.
Customizable: Add flavors like ube, chocolate, or even pumpkin for a seasonal twist.
Crowd-Pleasing: The chewy texture and sweet coconut flavor wins everyone over.
Make-Ahead Friendly: Keeps well for days and tastes even better after resting.
Great for Leftovers: It reheats beautifully, or enjoy it straight from the fridge.
Chef’s Pro Tips for Perfect Results
For butter mochi that’s soft, chewy, and just the right amount of crisp, keep these tips in mind:
- Use full-fat coconut milk: It adds richness and depth you just won’t get from lite versions.
- Don’t overmix the batter: Stir until combined—overbeating can lead to a dense texture.
- Let it rest after baking: The texture improves after a few hours or overnight.
- Bake until the top is golden brown: This caramelized crust is pure gold in flavor.
- Cool completely before cutting: For clean, neat slices that won’t fall apart.
Kitchen Tools You’ll Need
This recipe keeps things simple, which is part of its charm.
Mixing Bowls: For combining wet and dry ingredients with ease.
Whisk: Helps blend the batter smoothly.
Spatula: For scraping every bit of goodness into the baking dish.
9×13-Inch Baking Dish: The perfect size for even baking and golden edges.
Oven: Preheated to ensure a consistent bake.
Ingredients in Hawaiian Butter Mochi
What makes this dish shine is the harmony between rich coconut, creamy butter, and chewy rice flour. Here’s what you’ll need:
Sweet Rice Flour (Mochiko): 1 box (16 oz) adds the signature chewy texture.
Granulated Sugar: 2 cups brings sweetness to balance the savory butter.
Baking Powder: 2 teaspoons helps give a slight lift and lightness.
Large Eggs: 4 create structure and richness in the batter.
Whole Milk: 2 cups provides moisture and soft texture.
Coconut Milk: 1 can (13.5 oz) infuses tropical creaminess and flavor.
Unsalted Butter: 1/2 cup (melted) gives richness and a buttery depth.
Vanilla Extract: 2 teaspoons rounds out the flavor with a warm aroma.
Ingredient Substitutions
Whether you’re out of something or want to tweak the flavor, here are some easy swaps:
Whole Milk: Almond or oat milk for a dairy-free version.
Butter: Coconut oil for a more pronounced coconut flavor.
Coconut Milk: Evaporated milk for a subtler coconut profile.
Sugar: Light brown sugar for a hint of molasses.
Vanilla Extract: Coconut or almond extract for a unique twist.
Ingredient Spotlight
Mochiko (Sweet Rice Flour): This flour is made from glutinous rice, but don’t be fooled—it’s naturally gluten-free. It’s what gives mochi and butter mochi that irresistible chew.
Coconut Milk: Adds creaminess, a gentle tropical aroma, and a luxurious texture that sets this dessert apart from traditional baked goods.

Instructions for Making Hawaiian Butter Mochi
Before we dive into the mixing and baking, take a deep breath—you’re about to make something incredible. This recipe is all about ease and comfort, so let’s go step by step.
1. Preheat Your Equipment:
Set your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with butter or cooking spray.
2. Combine Ingredients:
In a large bowl, whisk together the mochiko, sugar, and baking powder. In a separate bowl, beat the eggs, then mix in milk, coconut milk, melted butter, and vanilla. Gradually add the wet mixture into the dry, whisking until smooth.
3. Prepare Your Cooking Vessel:
Pour the batter into the prepared baking dish, smoothing the top with a spatula.
4. Assemble the Dish:
Make sure the batter is evenly distributed—no pockets of flour or lumps.
5. Cook to Perfection:
Bake in the preheated oven for 1 hour or until the top is golden brown and a toothpick comes out clean.
6. Finishing Touches:
Let the mochi cool completely in the pan. This allows it to set and develop its chewy texture.
7. Serve and Enjoy:
Cut into squares and serve at room temperature or chilled—either way, it’s a bite of paradise.
Texture & Flavor Secrets
Hawaiian Butter Mochi is all about contrast. The top develops a thin, crackly crust while the interior stays soft, chewy, and custardy. The coconut milk gives it a rich, tropical depth, while the butter brings a warm, comforting finish. Every bite dances between dense and delicate, sweet and subtly savory.
Cooking Tips & Tricks
Let’s make sure your butter mochi comes out just right:
- Don’t rush the cooling—texture improves as it rests.
- Use high-quality coconut milk for the best flavor.
- For an even chewier result, refrigerate overnight before serving.
What to Avoid
Mistakes happen—but they’re easy to fix with a little know-how.
- Overbaking: This can dry out the center. Check at the 55-minute mark.
- Under-mixing: Can lead to lumps in the final bake. Whisk thoroughly.
- Cutting while warm: Causes crumbling. Let it cool completely first.
Nutrition Facts
Servings: 24
Calories per serving: 210
Note: These are approximate values.
Preparation Time
Prep Time: 15 minutes
Cook Time: 60 minutes
Total Time: 1 hour 15 minutes
Make-Ahead and Storage Tips
Butter mochi is the gift that keeps on giving. You can make it a day in advance—it actually improves in flavor and texture. Store in an airtight container at room temperature for up to 3 days, or refrigerate for a week. For longer storage, freeze slices between parchment paper and thaw overnight before serving. To reheat, pop a square in the microwave for 10 seconds to revive its gooey charm.
How to Serve Hawaiian Butter Mochi
This dessert is perfect as-is, but you can dress it up too. Serve with a dusting of powdered sugar, a dollop of whipped cream, or a few slices of fresh mango or pineapple. For special occasions, cut into fun shapes or layer with fruit compote for a twist.
Creative Leftover Transformations
Got leftovers? Get playful!
- Butter Mochi Sundae: Top a warm square with vanilla ice cream and caramel drizzle.
- Toasted Mochi Bites: Pan-fry slices until golden and enjoy with tea.
- Mochi Trifle: Layer with whipped cream and berries for a tropical parfait.
Additional Tips
- Always shake the coconut milk can before opening.
- A silicone spatula makes batter transfer easier and cleaner.
- Lightly score the top before baking for a decorative finish.
Make It a Showstopper
Presentation matters! Serve your mochi on a banana leaf or bamboo tray for island flair. A sprinkle of toasted coconut flakes or edible flowers turns it into a party centerpiece. And trust me, once your guests take a bite, they’ll be talking about it long after the last square is gone.
Variations to Try
- Ube Butter Mochi: Add ube extract or halaya for a purple-hued delight.
- Chocolate Chip Mochi: Fold in mini chocolate chips before baking.
- Pumpkin Spice Mochi: Mix in pumpkin puree and spices for a fall favorite.
- Matcha Butter Mochi: Add matcha powder for a green tea twist.
- Lilikoi (Passion Fruit) Mochi: Incorporate passion fruit juice for a tangy spin.
FAQ’s
Q1: Can I use regular flour instead of mochiko?
A1: No, regular flour won’t give the same chewy texture. Mochiko is essential.
Q2: Is this recipe gluten-free?
A2: Yes, mochiko is made from sweet rice and naturally gluten-free.
Q3: Can I reduce the sugar?
A3: Yes, you can reduce by 1/2 cup, but it may affect the texture slightly.
Q4: Can I use light coconut milk?
A4: You can, but the flavor and richness will be less pronounced.
Q5: How long does it keep?
A5: Up to 1 week in the fridge, 2 months in the freezer.
Q6: Can I double the recipe?
A6: Yes, but use two pans or adjust baking time for thicker mochi.
Q7: Can I bake this in a muffin tin?
A7: Absolutely! Great for portion control—bake for about 30–35 minutes.
Q8: What if I don’t have a whisk?
A8: Use a fork or wooden spoon and stir until smooth.
Q9: Why is my mochi too soft?
A9: It may be underbaked or too much liquid was used.
Q10: Can I use margarine instead of butter?
A10: Yes, though real butter gives the best flavor.
Conclusion
There’s something about Hawaiian Butter Mochi that makes it more than just a dessert—it’s a bite of aloha, a memory-maker, and an instant favorite. Whether you’re new to it or it’s a nostalgic classic, trust me, you’re going to love this. So preheat that oven, grab your mochiko, and treat yourself to a taste of the islands. It’s worth every bite.
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Hawaiian Butter Mochi
- Prep Time: 15 minutes
- Cook Time: 60 minutes
- Total Time: 1 hour 15 minutes
- Yield: 24 servings
- Category: Dessert
- Method: Baking
- Cuisine: Hawaiian
- Diet: Gluten Free
Description
Chewy, custardy, and rich with coconut flavor, Hawaiian Butter Mochi is a beloved island dessert that combines the comforting texture of mochi with the indulgent richness of butter cake.
Ingredients
- Sweet Rice Flour (Mochiko): 1 box (16 oz) – adds the signature chewy texture.
- Granulated Sugar: 2 cups – brings sweetness to balance the savory butter.
- Baking Powder: 2 teaspoons – helps give a slight lift and lightness.
- Large Eggs: 4 – create structure and richness in the batter.
- Whole Milk: 2 cups – provides moisture and soft texture.
- Coconut Milk: 1 can (13.5 oz) – infuses tropical creaminess and flavor.
- Unsalted Butter: 1/2 cup (melted) – gives richness and a buttery depth.
- Vanilla Extract: 2 teaspoons – rounds out the flavor with a warm aroma.
Instructions
- Preheat Your Equipment: Set your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with butter or cooking spray.
- Combine Ingredients: In a large bowl, whisk together the mochiko, sugar, and baking powder. In a separate bowl, beat the eggs, then mix in milk, coconut milk, melted butter, and vanilla. Gradually add the wet mixture into the dry, whisking until smooth.
- Prepare Your Cooking Vessel: Pour the batter into the prepared baking dish, smoothing the top with a spatula.
- Assemble the Dish: Make sure the batter is evenly distributed with no lumps.
- Cook to Perfection: Bake for 1 hour or until the top is golden brown and a toothpick comes out clean.
- Finishing Touches: Let the mochi cool completely in the pan to set and develop texture.
- Serve and Enjoy: Cut into squares and serve at room temperature or chilled.
Notes
- Shake the coconut milk can well before opening.
- Cool completely before cutting for clean slices.
- Store in an airtight container at room temperature or in the fridge.
- Use full-fat coconut milk for the best flavor and texture.
Nutrition
- Serving Size: 1 square
- Calories: 210
- Sugar: 18g
- Sodium: 90mg
- Fat: 10g
- Saturated Fat: 8g
- Unsaturated Fat: 2g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 35mg
Keywords: butter mochi, Hawaiian dessert, coconut mochi, easy mochi recipe, gluten-free cake