Step 1 / 7
saute
medium-high, single layer, undisturbed at first
mushrooms + 2 tbsp butter in a wide pot — they will flood the pan with their own water within three minutes; keep the heat up and do not stir until that liquid has boiled off, because browning cannot start while the surface is wet. Only after the pan goes dry and quiet do they take color, and that color is the entire flavor of the soup