Sweet and Savory Buttered Potatoes with Ground Beef

Soboro is a classic Japanese home-style dish made by simmering ground meat or seafood with soy sauce, mirin, and sugar until all the liquid evaporates.

This process concentrates the flavor and creates a pleasantly crumbly texture with a gentle balance of sweet and savory.

The most iconic dish using soboro is soboro-don, a rice bowl topped with ground chicken and scrambled eggs.

It's colorful, comforting, and a nostalgic taste of home for many in Japan.

The origin of soboro-don traces back to Tamahide, a historic chicken restaurant in Nihonbashi, Tokyo, founded in 1760.

It was first created as a less soupy alternative to oyako-don (chicken and egg rice bowl) for take-out customers.

Soboro isn't just for rice bowls—it also shines in side dishes and lunch boxes, and it's often used in simmered dishes like soboro-ni (ground meat simmered with vegetables).

It's a deeply rooted element of Japanese cuisine.

This recipe showcases a rich and savory side dish using soboro and potatoes, finished with butter for extra depth.

Thanks to microwave pre-cooking, it comes together quickly without the potatoes falling apart.

Sweet and Savory Buttered Potatoes with Ground Beef

COOKING TIME: 10 minutes | Servings: 2

2 medium potatoes

7 oz ground beef (or a mix of beef and pork)

(A) 8 tbsp. water

(A) 2 tbsp. soy sauce

(A) 1 tbsp. sake

(A) 1 tbsp. mirin

(A) 1 tbsp. sugar

(B) 1 tsp. potato starch

(B) 1 tsp. water

(B) 2 tsp. butter

1. Cut the potatoes into bite-sized pieces and place them in a microwave-safe bowl. Add 2 tbsp. of water, cover loosely with plastic wrap, and microwave at 600W for 3 minutes and 30 seconds.

2. In a skillet, cook the ground beef over medium heat without adding oil, breaking it up until browned. Wipe away any excess grease. Add the cooked potatoes and A (1/2 cup water, 2 tbsp. soy sauce, 1 tbsp. each of sake, mirin, and sugar). Place a drop lid or piece of parchment paper directly on top and simmer for 5 minutes.

3. Mix B (1 tsp. potato starch and 1 tsp. water) and stir it into the skillet to thicken the sauce.

4. Turn off the heat and mix in the butter while the pan is still hot for a perfect finish.

Tips & Notes

・After microwaving the potatoes, they should be soft enough to pierce easily with a toothpick. If not, flip and microwave for an additional 30 seconds.

・Keeps in the refrigerator for up to 3 days.