Small individual cauliflower's are gorgeous in May and early June with closely knitted florets, they are tender but crisp at the same time. Mornay sauce is often overlooked and regularly cooked poorly but good mornay sauce with cauliflower is a marriage made in heaven. I like to add egg yolks to my sauce as this makes it puffy, light and golden, and a few fresh breadcrumbs sprinkled over the top give it a little texture.