2
                    
                        
                                    - 
                                        
                                            3
                                                tbsp
                                         butter, unsalted 
- 
                                        
                                            1
                                         onion, yellow (chopped) 
- 
                                        
                                            1
                                         bay leaf 
- 
                                        
                                            1
                                                tsp
                                         sugar, brown 
 
                    Melt the butter in a dutch oven over medium heat. Add the onion and cook until soft and translucent. Add ⅔ of the tomatoes, bay leaf, and brown sugar.  Cook, stirring occasionally, until the tomatoes begin to brown (about 5 minutes).
                 
                
                    3
                    
                        
                                    - 
                                        
                                            2
                                                tbsp
                                         tomato paste 
- 
                                        
                                            2
                                                tbsp
                                         flour, gluten-free mix 
- 
                                        
                                            ½
                                                tsp
                                         baking soda 
- 
                                        
                                            1
                                                tsp
                                         salt 
 
                    Add the tomato paste and flour to the pot. Continue cooking, stirring frequently now, until the paste begins to darken. Slowly stir in the reserved tomato juice mixture, the remaining tomatoes, baking soda, and salt. Bring to a boil, and then reduce to medium-low heat to simmer until slightly thickened (about 5 minutes). Then, remove from the heat.
                 
                
                    4
                    
                        
                                    - 
                                        
                                            ½
                                                cup
                                         heavy cream 
- 
                                        
                                            1
                                                tsp
                                         black pepper 
 
                    Discard the bay leaf. Purée the soup in batches in a large blender if you want a smooth soup, or just skip this step if you'd like to keep some texture.  Return the puréed soup to the pot and bring back to a low simmer.  Add the heavy cream and pepper.