In a mixing bowl, combine flour and salt. Gradually add water, a little at a time, and knead until the dough becomes smooth and soft. Once kneaded well, coat it lightly with oil to prevent dryness. Cover and set it aside to rest while you prepare the filling. Resting the dough helps in easier rolling and better texture.
Take a bowl and mix together minced chicken, chopped onion, green chili, coriander, soy sauce, vinegar, hot sauce, black pepper, and salt. Make sure everything is mixed evenly. This juicy filling forms the core flavor of the momo. The sauces give depth, while the coriander brings freshness to every bite.
Knead the rested dough again for a minute and pinch out small pieces. Roll each into a thin circle, making the edges thinner than the center. Place a spoonful of the filling in the center. Carefully fold and seal the edges, shaping them into a half-moon or pleated dumpling. Make sure the edges are sealed well to prevent leaking during steaming.
Boil water in your steamer pot. Lightly grease the steamer plate with oil to prevent sticking. Place the momos on the tray, leaving space between each one. Cover the steamer and let the momos steam for 12 minutes. When done, the wrappers will look slightly transparent and firm. Remove and place them on a serving plate.
Make Momo Chutney
In a small pan, heat oil and sauté the chopped garlic till lightly golden. Add chili flakes, soy sauce, hot sauce, ketchup, vinegar, salt, and water. Stir well to combine. Let it simmer for about 2 minutes until the sauce thickens slightly. This cooked chutney is tangy, spicy, and smooth without the sharpness of raw garlic.