In a large skillet, saute the mushrooms in 1-2 Tbsp olive oil until the mushrooms have released their liquid and become golden brown and tender (make sure the liquid cooks down), about 7 minutes.
add the garlic and cook another minute.
Stir in the sour cream and parsley.
Taste for seasoning and add salt and pepper to taste.
Serve hot.
Video
Notes
To clean the mushrooms, use a damp paper towel to remove dirt. If you use water to clean mushrooms, it can cause them to become waterlogged.
If you want to use water to clean the mushrooms, quickly rinse the mushrooms and pat them dry with paper towels, but don’t soak them.
When cooking mushrooms, don’t overcrowd the pan. Cook mushrooms in a pan with a good amount of surface area. You want to be able to spread the mushrooms in a single layer to allow contact with the hot pan and let moisture evaporate quickly so they brown nicely.
Use full-fat sour cream. Low fat sour cream will liquidize when heated and the sauce will become runny.