记录一下网上找的方子：https://www.xiachufang.com/recipe/103321361/
2 cups water
1½ tablespoons tamarind paste
2 tablespoons peanut oil
¾ cup sliced shallots
3 cloves garlic chopped
2 tablespoons chopped fresh ginger
½ teaspoon mustard seeds
1 tablespoon chili powder
1 tablespoon ground coriander
2 teaspoons ground cumin
2 teaspoons ground turmeric
8 ounces fresh okra (about 4 cups), trimmed1-2 serrano chiles, stemmed and halved lengthwise
1 teaspoon brown sugar
¾ teaspoon salt
2 medium tomatoes, cut into wedges
1¼ pounds cod