2-3 small green chiles, such as Thai style, split lengthwise
2 stalks stalks lemongrass, trimmed and sliced ¼-inch thick
2 medium shallots, peeled and thinly sliced (½ cup)
1 tsp. kosher salt
1⁄2 tsp. chili powder
1⁄2 tsp. ground turmeric
2 medium tomatoes, cut into thin wedges
1 1⁄2 lb. tuna or other lean, firm-fleshed fish, preferably skin on, cut into 2-in. chunks
1 tsp. freshly ground black pepper
1 tsp. ground cumin
1⁄4 tsp. ground cinnamon
1⁄4 tsp. ground clove
1⁄4 tsp. ground nutmeg
1⁄2 cup coconut milk
Instructions
Use a small food processor or mortar and pestle to grind together the garlic, ginger, and cinnamon to make a chunky paste.
In a wok or large skillet, heat the coconut oil over medium-high heat until nearly smoking. Add the spice paste and coriander and cook, stirring constantly, for 1 minute.
Working one at a time, stir in all of the following ingredients: curry leaves, chiles, lemongrass, and shallots.
Lower the heat to medium, then add the salt, chili powder, turmeric, tomato; bring to a simmer
add the tuna, tossing gently to coat. Cover and cook for about 30 seconds, then stir in the black pepper, cumin, cinnamon, clove, nutmeg, and ¾ cup water; cook 5 minutes.
Add the coconut milk and adjust the heat to simmer; cover and cook until the fish is cooked through, 4–5 minutes. Taste and adjust the seasoning as needed before serving.