Fish Baked in Coconut Milk

Name: Fish Baked in Coconut Milk
Ingredients: 2 pounds thick fish fillets or steaks, halibut, cod or salmon; 4 teaspoons fresh lemon juice; 2 tablespoons vegetable oil; 2 cups finely chopped onion; 1/4 cup vegetable oil; 2 teaspoons minced garlic; 2 teaspoons minced ginger; 1 teaspoon minced green chile, serrano, Thai or jalapeno; 1 cup chopped fresh tomatoes; Spice mixture:; 6 teaspoons ground coriander; 1 teaspoon ground cumin; 1/4 teaspoon ground red pepper, cayenne; 1/4 teaspoon ground black pepper; 1/4 teaspoon ground turmeric; 1/2 teaspoon fennel seeds, coarsely ground with mortar and pestle; 1 1/4 teaspoon salt; 1/2 cup canned unsweetened coconut milk; 1/4 cup chopped cilantro, for garnish