2. In the morning, take the mushrooms, salt them lightly and cook them for about 5 minutes – then pour out the water and keep the mushrooms separate ensuring they do not start drying up. Now, take the barley groats and start cooking them. They love to overflow from the pot, so please watch it. They will further enlarge themselves two-fold or three-fold. To get it right, test their hardness. They should not be hard or too soft. I guess the Italians would call it “al dente.” When they are just right, pour out the water and wash the groats with cold water to remove any milky residue that tends to form.