1 large onion, chopped 2 stalks lemon grass, tender white portion thinly sliced ¼ cup water 2 inch section fresh ginger, peeled, chopped ½ cup cilantro 3 fresh serrano chile peppers, seeded (see Note) 4 cloves garlic, minced 2 teaspoon curry powder 1 teaspoon five-spice powder ¾ teaspoon salt