Leeks

To clean leeks. Cut off tops as you would on green onions, then insert your knife at a point 1 to 2 inches below the green and split up through the tops. Usually you can see the black dirt under the white skin of the leek. It is at this point that you split the leeks. Insert the knife twice, cutting in half one way, then the other, dividing the upper part of the leek into fourths.