Japanese corn rice (とうもろこしご飯, tomorokoshi gohan) is one of the simplest, most magical dishes of early summer — sweet corn kernels cooked right into a pot of rice with nothing but a little salt. The rice steams up fragrant and faintly sweet, dotted with pops of golden corn. It’s a type of takikomi gohan (seasoned mixed rice), and when corn is in season, it’s hard to beat.

The secret that separates a great corn rice from a plain one? Cook the stripped cob in with the rice. The cob carries a huge amount of sweetness and aroma, and letting it steam with the grains gives the whole pot a deeper, rounder corn flavor. Here’s exactly how I made it.

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A white bowl of Japanese corn rice — fluffy white rice dotted with sweet golden corn kernels — on a wooden table

Why You’ll Love This Recipe

Just three ingredients. Rice, fresh corn, and salt — that’s the whole recipe.
The rice cooker does everything. Prep the corn, press start, walk away.
Naturally sweet. Cooking the cob in with the rice gives it a deep, aromatic corn flavor.
A taste of Japanese summer. This is the kind of seasonal home cooking Japanese families look forward to all year.

What is Japanese Corn Rice?

Tomorokoshi gohan is a summer version of takikomi gohan — Japanese rice cooked together with seasonings and other ingredients so the flavor soaks into every grain. Where a typical takikomi gohan uses soy sauce, dashi, and vegetables, corn rice keeps things pure: just fresh sweet corn and a pinch of good salt, letting the natural sweetness of the corn shine. It’s a celebration of corn at its peak.

If you enjoy simple Japanese rice dishes, you might also like my Spam onigiri — corn rice also makes wonderful onigiri — or a comforting bowl of oyakodon.

Ingredients (Makes 2 rice-cooker cups / 2 gō)

Ingredient	Amount	Notes
Japanese short-grain rice	2 gō (about 300 g / 1.5 US cups)	Rinsed
Fresh corn	1 ear	Kernels cut off; keep the cob
Salt	1 to 1 1/3 tsp	Less for fine salt, more for coarse
Water	To the 2-cup line	Standard rice-cooker amount

This dish lives entirely on the quality of two things: the rice and the corn. I use good Japanese short-grain rice and my everyday Japanese rice cooker — the one appliance I truly use every day. I seasoned this batch with Okinawan nuchima-su sea salt, but any good salt works.

How to Make Corn Rice

Step 1: Cut the Corn Off the Cob

Husk the corn, cut it in half for easier handling, and stand each half on the cutting board. Run a knife down the sides to slice off the kernels. Don’t throw away the cobs — you’ll cook them with the rice.

Fresh corn kernels cut off the cob piled on a black cutting board next to the stripped cobs

Step 2: Rinse the Rice

Rinse the rice under cold water until the water runs mostly clear, then drain it well in a sieve.

Rinsed white Japanese rice draining in a fine mesh sieve over a bowl

Step 3: Add Water and Salt

Put the drained rice in the rice cooker pot and add water to the 2-cup line. Let it soak for 30 minutes to 1 hour. Then add the salt and gently stir until it dissolves.

Adding Okinawan nuchima-su sea salt to soaked rice and water in the rice cooker pot

Step 4: Add the Corn and Cook

Scatter the corn kernels over the rice, then lay the stripped cobs on top. Don’t stir — just let everything sit on the surface. Cook on the normal rice setting.

Corn kernels scattered over rice with two stripped cobs laid on top in the rice cooker pot, ready to cook

Step 5: Remove the Cobs and Fluff

When the rice is done, open the lid and take out the cobs. Fluff the rice gently from the bottom with a rice paddle, folding the corn through evenly.

Freshly cooked corn rice in the rice cooker, white rice studded with golden corn kernels, being fluffed

Step 6: Serve

Scoop into bowls and serve warm. It’s fragrant, gently sweet, and needs nothing else — though it’s lovely next to grilled fish and miso soup.

A white bowl of finished Japanese corn rice with golden kernels on a wooden table

Tips and Variations

Always cook the cob. It’s the single biggest flavor boost — don’t skip it.
Use the freshest corn you can. Corn’s sugar fades fast after picking, so buy it in season and cook it soon.
Add a knob of butter. Stir in a little butter at the end for a richer, corn-butter style version.
Make onigiri. Corn rice holds together beautifully as rice balls — great for bento and lunchboxes.

What to Serve It With

Corn rice is a simple side that rounds out a Japanese meal:

Miso soup and a piece of grilled fish for a classic set.
A crisp pickle like tataki ume kyuri on the side.
Shape leftovers into onigiri for the next day’s lunch.

Storing

Corn rice keeps for a day in the fridge, but it’s best frozen: pack warm rice into portions, wrap, and freeze for up to a month. Reheat in the microwave and it tastes freshly cooked. Freezing right after cooking locks in the sweetness and texture better than refrigerating.

Frequently Asked Questions

Can you cook corn in a rice cooker?

Yes — a rice cooker is perfect for it. Corn kernels (and even the cobs) cook right along with the rice, and the cobs release a lovely sweet, savory flavor into the water as everything steams together. Just add the corn on top of the rice and cook on the normal setting.

Can I use canned or frozen corn?

You can. Fresh corn in season is sweetest and lets you use the cobs for extra flavor, but a drained can of corn or a handful of frozen kernels works well too. Add canned corn as-is; frozen corn can go in straight from the freezer. You just won’t get the cob flavor, so a pinch more salt or a little butter helps.

How much water do I use?

Use the same water level you would for plain rice — fill to the line for the number of cups of rice you’re cooking. The corn adds a little moisture but not enough to change the ratio. If you add soy sauce or sake, count those as part of the liquid and top up to the line.

How do you store leftover corn rice?

Keep leftovers in the fridge for up to 2 days and reheat in the microwave with a light cover. Corn rice also freezes very well — portion it, wrap, and freeze for up to a month. Frozen portions are perfect for a quick bowl or for shaping into onigiri.

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