Corn Soup with Tofu Larb

Name: Corn Soup with Tofu Larb
Ingredients: For the corn soup:; 8 ears of corn; 1 bunch cilantro, stems only (reserve the leaves for the larb); 1 tablespoon coconut oil; 1 onion, sliced thin; 2 tablespoons ginger, roughly chop; For the tofu larb:; 1 package firm tofu; 2 tablespoons coconut oil; 2 tablespoons fish sauce (or soy sauce/tamari for a vegan recipe); 1 tablespoon lime juice; 1 teaspoon sugar (optional); 1 bunch cilantro, leaves only, finely minced; 2 to 3 bird's eye chilies, or more to taste, finely minced.