Brisket with tomatoes and potatoes. A sweet, sour and rich flavor, no water needed 

This hearty beef stew features tender beef chunks bathed in a rich, thick tomato broth with potatoes and onions. The highlight is it uses pure frozen tomato without adding any water, allowing the natural sweetness and umami to shine through. Slow cooking renders the ingredients soft and flavorful, developing an unctuous gravy. It's perfect for warming up chilly winter nights.
Ingredients：
7 frozen tomatoes
2 potatoes, cubed
3 pieces of ginger
1/2 onion, chopped
1 piece of scallion
2 pounds beef brisket
2 tablespoons olive oil
1 tablespoon butter
1 teaspoon dark soy sauce
1 tablespoon light soy sauce
1 tablespoon ketch-up
1 tablespoon rock sugar
1 teaspoon salt