¼teaspoonpepper(freshly-cracked, or ground), (or more, to taste)
Instructions
Sautéing
In the saucepan or pan, heat butter over very medium heat.Add the onions and cook covered until they turn translucent (about 5 minutes); stir occasionally to cook evenly.
Simmering
Add the mushroom and simmer covered until they are cooked through (about 5 minutes). Sprinkle the flour and whisk to combine well. Add the wine and stir until the mixture thickens to your preferred consistency (bear in mind it thickens more as it cools).Season with salt and pepper to taste and serve