Deviled eggs

• 12 wholelarge eggs · 7 to 10 days old, which peel far more cleanly than fresh ones
• 1/3 cupmayonnaise · full fat, a good one, this is most of the flavour
• 2 tbspplain Greek yogurt · full fat, it lightens the filling and adds a little tang
• 2 tspDijon mustard · smooth, not grainy, for the emulsion
• 1/2 tspyellow mustard · for the colour and the vinegar edge, optional but traditional
• 2 tspdistilled white vinegar · or the brine from a jar of cornichons
• 1/2 tspkosher salt · plus more to taste, yolks take more salt than you expect
• 1/4 tspblack pepper · finely ground so it does not read as grit
• 1 pinchcayenne pepper · about 1/8 tsp, this is the devil in deviled
• 1 tbspcornichon or dill pickle · minced very fine, optional
• 2 tspsmoked paprika · for dusting at the very end, not stirred in
• 2 tbspchives · sliced thin, for the finish

Method

1. 1

   Buy the eggs a week early, because peeling decides how this looks

   A torn white is a deviled egg you cannot serve, and the cause is nearly always egg age rather than technique. Egg white pH rises over the first week as carbon dioxide escapes through the shell, and the bond to the inner membrane weakens with it. Ten-day-old supermarket eggs peel in two pieces. Farm eggs bought the day they were laid will shred no matter what you do. Buy the carton at the start of the week and boil it at the end.

2. 2

   Boil eleven minutes from a boiling-water start, then ice for fifteen

   Lower cold eggs into water that is already at a rolling boil, drop the heat to a bare simmer, and run eleven minutes on a timer for a fully set yolk that still crumbles rather than chalks. Then straight into a bath with as much ice as water for fifteen minutes. The shock stops carryover cooking, which is what prevents the grey ring, and it contracts the contents away from the shell so the peel lifts cleanly. Both halves of that matter here.

3. 3

   Peel under running water, and boil two spare eggs

   Crack at the fat end where the air cell sits, roll the egg under your palm until the shell is crazed all over, then peel under a thin run of cold water so the membrane releases and the fragments wash away. Even with everything right, one egg in a dozen tears. Boil fourteen and plan to serve twenty-four halves from twelve good ones. The spares also give you two extra yolks, which makes the filling generous enough to mound properly.

4. 4

   Wipe the knife between every cut

   Halve the eggs lengthwise with a thin sharp knife and run it under hot water and wipe it dry every two or three eggs. Yolk builds up on the blade and drags across the cut face of the white, leaving a yellow smear that no amount of piping hides. Pop the yolks out into a bowl with your thumb rather than a spoon, which is less likely to tear the rim, and lay the whites cut side up on the tray you will serve them on.

5. 5

   Push the yolks through a fine-mesh sieve, and this is the whole recipe

   Set a fine-mesh sieve over the mixing bowl and press the yolks through with the back of a rubber spatula. It takes ninety seconds and it is the difference between a filling that is silky and one that is sandy. Mashing with a fork leaves lumps that never fully break down no matter how long you stir, and a food processor gives you a gummy paste because it works the yolk fat. The sieve is the only method that produces a genuinely smooth result.

6. 6

   Fat, acid, salt, in that order, and taste between each

   Mayonnaise and yogurt into the sieved yolks first and stir until uniform, then both mustards, then the vinegar, then the salt, pepper and cayenne. Taste after the acid and again after the salt. Yolks are bland and fatty and swallow far more of both than seems reasonable, and the single most common fault in a homemade deviled egg is an under-seasoned filling that tastes like rich nothing. If it tastes flat, it wants salt. If it tastes heavy, it wants vinegar.

7. 7

   Greek yogurt for a third of the mayonnaise, and why not all of it

   Swapping two tablespoons of the mayonnaise for full-fat Greek yogurt lightens the filling, adds a clean lactic tang and takes about 30 calories and 3g of fat off the plate across the batch. Going all the way to yogurt does not work: mayonnaise is an emulsion of oil and egg that carries flavour and holds a piped shape, and a yogurt-only filling weeps liquid within an hour on the tray. A third is the point where you get the lift without the leak.

8. 8

   The texture target, and how to correct it in either direction

   You want a filling that holds a soft peak on a spoon, roughly the consistency of thick frosting. Too stiff and it tears the whites as you pipe and reads dry in the mouth. Too loose and it slumps flat within twenty minutes on the tray. Loosen with a teaspoon of yogurt or a teaspoon of the pickle brine, never with water. Tighten by putting the bowl in the fridge for fifteen minutes rather than by adding more yolk, which throws the seasoning out.

9. 9

   Pipe them, and a zip bag with a corner cut off is fine

   A piping bag with a large star tip gives the ridged classic look and takes about four minutes for twenty-four halves. A zip-top bag with half an inch cut off one corner gives a smooth mound and takes three. Both beat two spoons, which leaves a dented lump and yolk smeared on the rim of the white. Fill the bag, twist the top closed, and work from the outside of each half inward so the filling anchors against the rim.

10. 10

    Chill thirty minutes, dust at the last moment

    Refrigerate the filled eggs uncovered for at least thirty minutes so the filling firms and the seasoning settles, which measurably changes how they taste. The smoked paprika, the chives and any flaky salt go on immediately before serving, never before the chill. Paprika dusted early absorbs moisture from the filling and goes from a bright dusting to damp orange streaks, and chives wilt and darken. This is a two-minute step that decides whether the tray looks made or made-earlier.

11. 11

    Four variations that are worth the trouble

    Smoked trout and dill: fold in 2oz of flaked hot-smoked trout and a tablespoon of dill, and skip the cayenne. Everything bagel: dust with the seasoning mix rather than paprika and add a teaspoon of the pickle brine. Curried: half a teaspoon of good curry powder bloomed in a teaspoon of warm oil first, plus a little mango chutney. Bacon and chive: two rashers cooked crisp and crumbled on at the last second, never stirred in, where they go soft.

12. 12

    Make-ahead, transport, and the food-safety limit

    Boil, peel and halve the eggs and make the filling up to two days ahead, keeping the whites and the filling separately covered in the fridge. Assemble within three hours of serving. Filled eggs hold two days refrigerated but the whites weep and the filling crusts after about twelve hours. On a table, cooked eggs should not sit above 40F for more than two hours, or one hour if the room is above 90F, so set the tray over a shallow bed of ice at any outdoor event.

13. 13

    Scaling to four dozen, and the assembly line that makes it possible

    Past about two dozen halves this stops being a recipe and becomes a production line, and treating it that way cuts the time by half. Boil in two pots rather than one crowded one, so nothing sits stacked. Peel everything before you cut anything. Cut all the whites in one pass, wiping the knife every third egg, and lay them straight onto the serving trays rather than a holding plate. Sieve all the yolks together in one bowl and season the whole batch at once, because seasoning four small batches to taste never lands in the same place twice.

14. 14

    Trim the base, and the two-minute fix for a sliding tray

    Take a paper-thin slice off the rounded underside of each white so it sits flat. It costs nothing, it uses the same knife you already have out, and it removes the single most annoying failure mode of a deviled egg tray, which is twenty-four halves sliding into each other the moment somebody picks one up. For transport, line a rimmed sheet with a damp paper towel, which grips the whites, and invert a second sheet over the top rather than stretching film across the filling.