Persillesovs

Every country has a dish that means home. In Denmark it's stegt flaesk med persillesovs: thick slices of pork belly, fried until the fat turns to glass, served with boiled potatoes and a white sauce so full of parsley it's practically green. The Danes voted it their national dish, which surprised nobody who grew up eating it on a Wednesday evening in October with the rain against the kitchen window.

The sauce is the quiet half of that partnership, and it's the half that holds the whole plate together. Persillesovs is a hvid sovs, a white sauce built from butter, flour, and milk, the same mother sauce the French call bechamel. But in a Danish kitchen it becomes something else entirely, because you stir a full bunch of chopped flat-leaf parsley into it at the very end, off the heat, so the herbs stay bright and alive instead of turning dull and khaki.

Pay attention to two things and you'll have this for life. First, cook the roux properly: two minutes over a gentle heat, stirring constantly, so the raw flour taste disappears but the color stays pale. Second, and this is the one that matters most, take the pan off the heat before you add the parsley. The residual warmth softens the herbs just enough. Any more and you lose the color and the fresh flavor that makes this sauce worth making from scratch. You'll know when it's right. The sauce will be ivory and green and smell like a garden in June, and the first spoonful over a hot potato will tell you why the Danes chose this dish above everything else.