Mochi Matcha Marshmallow Bites are my kind of quick sweet snack: soft and chewy matcha mochi with little gooey marshmallow pockets and a light starch dusting so they don’t stick to everything.

The matcha gives a gentle green tea bitterness that I really like with the sweetness here, and the texture stays pleasantly bouncy. This version is microwave mochi, so it’s fast, and it has that simple, classic glutinous rice flour chew I always want from mochi.

I like these on a dessert tray or as a small treat with tea, especially when I want something different from cookies. They’re also easy to portion, so they’re nice for sharing.

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Why You’ll Love This Recipe

Soft and Chewy: You get that classic mochi bounce, with a tender chew that stays satisfying even after it cools.

Microwave Friendly: No steaming setup, no stove babysitting. It comes together fast, which is exactly what I want for a small dessert.

Matcha Flavor: The matcha actually comes through, especially if you use a good culinary-grade powder. It’s a nice change from plain mochi.

Marshmallow Pockets: Stirring the marshmallows in after cooking keeps them in little gooey spots instead of melting into the whole dough.

Easy to Slice: A short chill makes the bites much cleaner to cut, so you get neat little squares instead of a sticky situation.

Key Ingredients

Matcha Mochi

Sweet rice flour: This is the whole reason the bites are chewy. Make sure it’s glutinous rice flour (often labeled sweet rice flour), not regular rice flour.
Granulated sugar: Keeps the mochi sweet and helps the texture stay tender. I stick with regular white sugar here.
Matcha powder: Use culinary grade matcha, and I really recommend sifting it so you don’t end up with little green clumps.
Baking powder: Just a little helps loosen the texture so it’s not dense and rubbery.
Fine salt: Don’t skip it. It makes the matcha taste more balanced and keeps the sweetness from tasting flat.
Whole milk: Milk gives a slightly richer mochi. Water works too, and unsweetened plant milk is fine if you want it dairy-free.
Vanilla extract: This softens the matcha edge a bit. It’s subtle, but I like it in the background.
Unsalted butter: Makes the dough smoother and less sticky to handle. If you use salted butter, just keep the added salt light.

Marshmallow and Finish

Mini marshmallows: Minis are easier to distribute so you get little pockets throughout. If you only have large ones, snip them into smaller pieces.
Cornstarch or potato starch: This is for dusting so the mochi doesn’t glue itself to the counter. Potato starch feels a little less chalky to me.
Neutral oil: Just for greasing the pan so the mochi releases easily. Any mild oil works.

Recipe Instructions

Grease the pan: Lightly grease an 8-inch square pan or heatproof dish with neutral oil. Dust a work surface and your hands with cornstarch or potato starch, and set the mini marshmallows aside.
Mix the dry ingredients: In a microwave-safe bowl, whisk the sweet rice flour, sugar, matcha powder, baking powder, and salt until the color looks even and there are no matcha streaks.
Add the liquids: Whisk in the milk and vanilla until smooth. Scrape the sides and bottom so you don’t get dry flour hiding in the bowl.
Microwave: Cover the bowl, microwave on high for 1 minute, then stir well. Microwave in 30-second bursts, stirring each time, until the dough is very thick and sticky and the center looks glossy and set, about 3 to 4 minutes total.
Stir in the butter: Add the butter and stir until it’s fully melted and the dough looks smoother. Let the mochi stand for 3 to 5 minutes, until it’s cool enough to handle.
Add marshmallows: Turn the dough out onto the dusted surface and gently flatten it. Scatter the mini marshmallows over the dough, then fold and knead just until the marshmallows are evenly distributed.
Press and chill: Press the mochi into a 1-inch-thick rectangle and dust the top lightly with starch. Chill for 20 to 30 minutes for cleaner cuts.
Cut and serve: Cut into 16 bites, then dust off any excess starch before serving.

My Tips!

This is the section that separates “good” from “wow.” If you read only one part of this post, make it this one — it’s where I reveal my recipe trick.

Recipe Tips & Tricks

Sift the matcha first. Matcha clumps easily, and those clumps don’t always whisk out. A quick sift makes the color and flavor much more even.

Stop microwaving when the center looks glossy. If it’s thick, sticky, and looks set in the middle, it’s done. Overcooking makes the mochi tougher.

Add the marshmallows after cooking. If you mix them into hot batter before the mochi sets, they melt and disappear. Adding them to the cooked dough keeps those little gooey pockets.

Dust your hands early and often. Mochi is sticky, and it’s normal. A light starch dusting is usually all you need to keep it manageable.

Chill for cleaner cuts. You can cut right away, but a short chill makes the squares neater and less sticky on the knife.

Simple tweaks

Here’s where the fun begins — a few simple tweaks can turn this recipe from casual treats into the star of any party.

Serving Suggestions

Green tea: These are really good with hot green tea or hojicha. I like the slightly bitter tea with the sweet mochi.
Iced latte: Matcha mochi with an iced latte is an easy afternoon snack. Even plain cold milk works if you want to keep it simple.
Fruit: Strawberries, raspberries, or sliced mango are nice on the side. I like adding fruit when I’m serving these as dessert.
Extra dusting: Keep a little bowl of potato starch nearby and give the bites a light re-dust right before serving. It keeps them tidy on a platter.

Eat it later

This section explains how to store leftovers properly and how far in advance the recipe can be prepared.

Storage and Make Ahead

Store these airtight at cool room temperature for up to 1 day. Mochi is best the day it’s made, and it tends to firm up as it sits.

If you want a little more time, refrigerate up to 3 days. Bring them to room temperature before eating so the chew softens again.

If the outside looks a bit damp after storing, just dust lightly with more cornstarch or potato starch. That usually fixes the stickiness right away.

It could help!

Before you close the tab or print the recipe, scroll through these quick answers.

Recipe FAQs

Can I use regular rice flour instead of sweet rice flour?

No, you really need sweet rice flour (glutinous rice flour) for that chewy mochi texture. Regular rice flour will make it more gritty and it won’t get the same stretch.

What kind of matcha should I use?

Culinary grade matcha is the right choice for baking and desserts. I also like to sift it first, because matcha clumps easily and the clumps taste bitter.

Why add the marshmallows after the mochi is cooked?

Mixing them into the hot, uncooked batter makes them melt into the dough. Adding them after cooking keeps them in little pockets, which is the whole point here.

Can I make this dairy-free?

Yes. You can swap the whole milk for water or an unsweetened plant milk, and use a dairy-free butter (or a little neutral oil) for the fat.

My mochi feels too sticky to handle. What should I do?

Use more starch on your hands and the counter, and give it a short chill if it’s very soft. Mochi is naturally sticky, but it should be workable with dusting.

Keep it with you

The printable version with print button is at the end of the post, easy to follow, and includes all the steps you’ll need.

Mochi Matcha Marshmallow Bites

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Prep Time: 20

Cook Time: 6

Total Time: 26

Serving Size: 16

Chewy matcha mochi bites with pockets of gooey marshmallow and a light starch dusting