1
                    
                    Pre-heat the oven to 375°F while you prepare the lamb.
Consider the rack as a series of lower-case b's connected together where the upright portion is the "stem", and the round portion is the "body".  Trim the fat along the stems until it nearly reaches the body, leaving the bone exposed.  Make cuts in the meat to separate the body of each 'b' from the next, while leaving the stem of each fully connected.
Bend both racks into semicircles with stems in the center of the circle, and the bodies on the outside.  Place them next to one another to form a complete circle, and use kitchen twine around the bodies to hold everything together.  Add a second round of twine around the base of the stems to add more support.
                 
                
                    2
                    
                        
                                    - 
                                        
                                            1
                                                tbsp
                                         olive oil 
- 
                                        
                                            1
                                                tsp
                                         salt, coarse 
- 
                                        
                                            ½
                                                tsp
                                         pepper, black 
- 
                                        
                                            6
                                                tsp
                                         garlic (minced) 
- 
                                        
                                            4
                                                tsp
                                         thyme, fresh (chopped) 
- 
                                        
                                            1½
                                                tsp
                                         coriander, ground 
 
                    Combine the olive oil, herbs, and spices in a small dish.  Generously slather the mixture all around the meat. Place the ribs in a bundt pan, and cook on the middle rack until the meat reaches 130°F (about 30–35 min, or 8–12 min / lb).
                 
                
                    3
                    
                    Remove the lamb from the pan, cover in foil, and transfer to a wire rack to rest (for 5–20 min).  Meanwhile, pour the drippings from the bundt pan into a saucepan and combine over low heat with the remaining ingredients. Taste for flavor and adjust with salt & pepper as needed.