Burnt Honey Custard Tart in a Rye Crust, With No Blowtorch Involved
A dark caramel skin taken in the oven rather than with a torch — which is both a house rule at this particular dinner and, it turns out, the better way to do it.
Pairing
Wine — A cold tawny port, served in a small glass — nuts, dried fruit and oxidation land in the same place burnt honey does, and the chill keeps it from piling sweetness onto sweetness. Mixed drink — A rye Sazerac made without sugar — the rye answers the crust, and the anise and bitters cut a custard that has 200 g of honey in it. Teetotaler — Strong cold coffee shaken hard with ice and a wide twist of orange, unsweetened — bitter, aromatic and cold against a warm, fragrant, caramel-skinned slice.
Tools
A 25 cm loose-bottomed tart tin, baking paper and beans, a rolling pin and two sheets of paper to roll the pastry between because rye tears and patching it is routine rather than a failure, a fine sieve and a pouring jug for the custard, a tray and an oven shelf you are willing to pull halfway out so the case can be filled in situ rather than carried full across a kitchen, an oven you can move confidently between 180, 150 and 190 °C, a serrated knife for trimming the case while it is still warm, a cool room or larder rather than a fridge to hold it in, and a long knife plus a cloth for cutting at the table — hot, dry, wiped between every slice
Ingredients · swaps in parentheses
Plain flour and dark rye flour, both weighed (100 g buckwheat with 150 g of a gluten-free blend and a little xanthan makes the gluten-free case, pressed into the tin with fingers rather than rolled because buckwheat is even more fragile than rye, and buckwheat with burnt honey is arguably the better tart), icing sugar, fine sea salt, cold unsalted butter, eggs — yolks, one whole one, and a white kept back for sealing the case — double cream, whole milk, burnt honey syrup weighed rather than measured, since honey syrup is far denser than water and a jug will leave the tart under-flavoured (maple taken to the same dark point works and lands rounder, woodier and less complex, an eggless coconut-and-oat set cream with cornflour and agar is a different dessert, not this one, and should go out under its own name), demerara sugar for the skin, and a few bay leaves if you are infusing the cream
Magic
Bruise six fresh bay leaves and drop them into the cream, milk and honey once it is steaming, then take it off the heat and leave it twenty minutes before reheating and carrying on. You are already straining the custard through a fine sieve, so the infusion costs you no extra step and no extra equipment. Bay in something sweet reads as almond, faint eucalyptus and a cool bitterness on the back of the palate, and against 200 g of burnt honey it is the difference between a tart that is deep and a tart that is merely sweet — particularly at the twenty-four degrees this room will be by ten o'clock, which is exactly when a custard is at its most fragrant and most in danger of cloying. Undecided? Steep one leaf in a mugful of the hot cream, taste it at five minutes, and let that settle it the whole idea costs a single leaf to audition.
Before you begin
Rye has almost no gluten, so the pastry is short, crumbly and intolerant of handling — stop the moment it holds together, and expect to patch the lining rather than roll a perfect disc. Blind-bake by smell, not colour, because rye browns without telling you and the cue is a dry, sandy, biscuity base. The egg-white seal on the hot case is not optional: it is the whole difference between a crisp base and a soggy one three hours later. Strain the custard and skim the foam, since foam bakes into a pale scum on a surface you are about to caramelise. Fill the case on the oven shelf, and judge the set by nudging the tray — the middle five centimetres should move as one slow piece, and a ripple means it is still liquid. Then the last eight minutes at 190 °C, which decide the tart: thirty seconds long and the custard edge breaks and weeps, thirty seconds short and you have a pale honey tart instead of this one, and doming or bubbling at the edge means it has already gone far enough. Cool it two hours at room temperature — a warm slice slumps — and keep it out of the fridge on the day, since cold makes the pastry damp, the custard tight and the flavour close to absent. It is a set egg custard, so cool it promptly rather than leaving it out overnight in a warm kitchen, and check holding guidance for egg dishes with your own national food authority if you are feeding anyone outside the house. Past hour four the base starts drinking moisture from the custard, so bring the second tart out late rather than putting both on the table at once.
A blowtorched sugar crust has flavor on the top and glass underneath. A caramel skin taken in the oven has flavor all the way down into the custard, because the sugars are browning in contact with the cream rather than sitting on it. That is the real argument for doing it this way.
The other argument is that this tart was designed for a dinner at which there is exactly one flame in the building and it is not a kitchen torch. Sometimes a constraint hands you the better technique and you should take it without arguing.
The thing that decides whether this works is the last eight minutes. You bake the custard low and slow until it is just set, then push the oven up hard to take the surface to a deep russet. Go thirty seconds too far and the edge of the custard breaks and weeps. Stop thirty seconds early and you have a pale honey tart, which is a perfectly nice thing and not this thing. Stand at the oven door for those eight minutes.
Yield
One 10 inch tart, 12 slices. Written for the 20-guest version of this evening as two tarts, brought out whole and cut at the table.
Time
Active: 45 minutes. Total: 4 hours 30 including chilling, baking and a long cool. Make-ahead window: this is genuinely better on day two, so make it the day before and stop thinking about it.
Ingredients
Rye pastry:
- 5 oz all-purpose flour (about 1 cup — weigh it, flour volume is the least reliable measurement in any kitchen)
- 3½ oz dark rye flour (about ¾ cup)
- 1½ oz powdered sugar (about ¼ cup)
- ½ teaspoon fine sea salt
- 10 tablespoons cold unsalted butter, cubed
- 1 egg yolk
- 2 to 3 tablespoons ice-cold water
- 1 egg white, lightly beaten, for sealing
Burnt honey custard:
- 1⅔ cups heavy cream
- ⅔ cup whole milk
- 7 oz burnt honey syrup (about ⅝ cup — honey syrup is much denser than water and measuring it by volume will leave the tart under-flavored, so weigh it)
- 5 egg yolks plus 1 whole egg
- ½ teaspoon fine sea salt
- 1 tablespoon extra burnt honey and 2 teaspoons demerara sugar, for the skin
Method
- Rub or pulse the flours, powdered sugar, salt and cold butter together until it looks like coarse breadcrumbs with some pea-sized pieces left in. Add the yolk and just enough cold water to bring it together in a shaggy mass. Rye has very little gluten, so this pastry is short and crumbly and will not tolerate being worked; stop as soon as it holds.
- Flatten to a disc, wrap, chill 1 hour. Roll to ⅛ inch between two sheets of baking paper — it tears easily and patching it is entirely normal. Line a 10 inch loose-bottomed tin, leaving the excess hanging over the rim, and chill again for 30 minutes or freeze for 15.
- Line with paper and baking beans and blind-bake at 350°F for 20 minutes. Remove the beans and bake another 10 to 12 minutes, until the base looks dry and sandy and smells biscuity. Rye browns without telling you, so go by smell rather than color.
- Brush the hot case all over with beaten egg white and return it to the oven for 2 minutes. This seals the pastry against the custard and is the difference between a crisp base and a soggy one three hours later. Trim the overhanging edges level with a serrated knife while it is still warm.
- Drop the oven to 300°F. Warm the cream, milk and burnt honey together until steaming but not boiling, stirring to dissolve the honey completely.
- Whisk the yolks, whole egg and salt in a bowl, then pour the hot cream over them in a thin stream, whisking. Strain through a fine sieve into a pitcher— always strain, it takes fifteen seconds and it removes the tiny cooked bits that would otherwise be a texture in the finished tart. Skim off any foam; foam bakes into a pale scum on the surface and you want that surface clean.
- Put the tart case on a tray on the oven shelf, pull the shelf halfway out, and fill it to the brim from the pitcher. Filling it in situ rather than carrying a full tart across a kitchen is worth doing once and then always doing.
- Bake at 300°F for 35 to 45 minutes. It is set when the outer three-quarters is firm and the middle 2 inches still moves as one piece when you nudge the tray — a slow wobble, not a ripple. A ripple means liquid; another five minutes.
- Brush the surface with the extra burnt honey, scatter the demerara evenly, and raise the oven to 375°F. Bake 6 to 8 minutes more, watching it, until the surface is a deep even russet with darker freckles. Take it out the moment it looks right. If the custard starts to dome or bubble at the edge, it has gone far enough.
- Cool completely at room temperature — at least 2 hours. The custard finishes setting as it cools and a warm slice will slump. Do not refrigerate it if you are serving it that day; a fridge makes the pastry damp and the custard tight.
Make-ahead
Weeks out: the burnt honey. A month out: the pastry, blind-baked and frozen in its tin; fill from frozen after ten minutes in a hot oven to refresh it. The day before: the whole tart. It is better then — the custard has finished setting and the caramel skin has softened slightly into the rye rather than sitting on top of it.
If you make it the day before, keep it covered in a cool room rather than a fridge if your kitchen is genuinely cool. If it must go in the fridge, take it out at least 45 minutes before serving; a cold honey custard tastes of very little.
This is a set egg custard, so treat it as you would any egg dish: cool it promptly rather than leaving it out overnight in a warm kitchen, and if you are catering for anybody outside your household check your own national food authority’s guidance on holding times for egg-based dishes, which differ by country.
Holding and service
It is designed to be served at room temperature, which removes it entirely from the list of things that need timing on the night. Brought out whole at ten o’clock and cut at the table with a hot dry knife, wiped between cuts.
It looks its best in the first three hours after cooling. At hour four the base has begun to take moisture from the custard and the pastry loses its snap, though it still eats well. At hour six it is a soft tart. That is the point at which it stops being worth putting a fresh one out — so bring the second tart out late rather than putting both on the table at once.
A warm room helps rather than hurts, unusually: at 75°F the custard is at its most fragrant, which is exactly the temperature the room will be by dessert.
Scaling
Everything multiplies exactly. Pastry, custard, salt, all of it.
What does not multiply is the oven, and that is why this is one of the two dishes on the menu that fails first when the kitchen is a tent with two induction rings. A hundred and fifty guests is thirteen tarts, which is at least four oven loads of blind-baking and four more of custard at two different temperatures, on a day when the oven also has a braise in it.
The method changes above about four tarts: bake them the day before, at home or anywhere with a real oven, and transport them baked. They travel well flat, they need no refrigeration for the journey if the car is cool, and — the point worth repeating — they are better on day two anyway. This is the rare case where the scaling solution is also the better recipe.
Substitutions
Buckwheat flour for the rye, for a gluten-free crust. Use 3½ oz buckwheat and 5 oz of a gluten-free plain blend with a little xanthan. Buckwheat is even more fragile than rye, so press it into the tin with your fingers rather than rolling it. Flavor-wise this is close to equivalent and arguably more interesting — buckwheat and burnt honey are very good together.
Maple syrup for the burnt honey, taken to the same dark point in the pan. Rounder, woodier, less floral. The tart is a little less complex and completely delicious.
A vegan version is not this tart and should not be called one. An eggless set cream — coconut cream and oat cream with cornstarch and a little agar, sweetened with burnt barley malt, in the same buckwheat case, chilled rather than baked — gives you a good dessert of the same color and flavor family, with a genuinely different texture and no caramel skin. Make it, name it as what it is, and put it out at the same moment as the other.
Why this is here
This is the dessert for One Match, Occasion Study No. 19 on Tangled Thistle, in which a room begins in total darkness and lights itself over about eleven minutes from a single flame passed hand to hand until every candle in the building is burning. It arrives at ten o’clock, when the room is at its brightest and can finally see something properly, and it is deliberately the one course that rewards being looked at. The refusal to torch it is a house rule that turns out to be a better technique. The full food and drink design is Everything Is Already on the Table; the working menu is here on Salty & Clever.
Part of Recipes & Technique.