Use a paper towel to wipe the dirt off the mushrooms. It’s best not to run the mushrooms under water since they will soak up all the liquid and become soggy when cooked.
Cut off the stem, if desired to make the mushrooms more sturdy for cutting. You can mince the stems to use in a recipe.
Using a firm grip, lay the mushroom on its side.
For slices
Using a sharp knife, start from one end and slice until the mushroom has been cut.
For quarters
Using a sharp knife, cut the mushroom in half and cut each half in half.