1 1/2 lbs bluefin tuna steaks (cut into 20 cubes)  | 
                                                20 frozen pearl onions, defrosted  | 
                                                1/2 cup coconut milk, lite unsweetened  | 
                                                1 -2 thai peppers, crushed  | 
                                                1 tablespoon brown sugar  | 
                                                1 lime, juice and zest of  | 
                                                1 teaspoon minced fresh ginger  | 
                                                1 teaspoon minced lemongrass (i used gourmet gardens in a tube http ( or or www.gourmetgarden.com or us or index.php)  | 
                                                2 teaspoons fish sauce or 2 teaspoons soy sauce  | 
                                                1 tablespoon minced basil or 1 tablespoon minced cilantro  | 
                                                1/8 cup olive oil  |