→ Soup Base
                    
                      
                        01 - 
                        30 millilitres unsalted butter
                      
                    
                      
                        02 - 
                        15 millilitres olive oil
                      
                    
                      
                        03 - 
                        1 large onion, finely diced
                      
                    
                      
                        04 - 
                        4 garlic cloves, minced
                      
                    
                      
                        05 - 
                        450 grams mushrooms, sliced
                      
                    
                  
                    → Thickener and Liquid
                    
                      
                        06 - 
                        16 grams all-purpose flour
                      
                    
                      
                        07 - 
                        950 millilitres chicken broth or vegetable broth
                      
                    
                      
                        08 - 
                        240 millilitres whole milk
                      
                    
                  
                    → Seasoning and Garnish
                    
                      
                        09 - 
                        Salt, to taste
                      
                    
                      
                        10 - 
                        Black pepper, to taste
                      
                    
                      
                        11 - 
                        Fresh thyme, for garnish