Plum tarte Tatin

Method

1. Halve the plums or Zwetschgen along their natural seam and remove the pits. Freestone varieties (including most Zwetschgen) twist apart cleanly with your fingers; clingstone plums need a small knife run around the pit to free it. Set the fruit aside, cut-side up.
2. Choose an ovenproof, heavy-based skillet around 24 to 26 cm across, cast iron or a solid stainless steel pan that can go straight into the oven. Melt the butter and sugar together over medium heat, swirling the pan occasionally rather than stirring, until the mixture turns a deep amber caramel, the colour of strong tea, 5 to 8 minutes. Watch closely once it starts to colour: caramel can go from perfect to burnt within a minute.
3. Take the pan off the heat and stir in the cinnamon stick or star anise pod (or the pinch of ground cinnamon, if using). Let it sit in the warm caramel for a moment to release its aroma.
4. Arrange the plum halves cut-side down in the caramel, packed as tightly as you can fit them; they shrink as they cook, so gaps now become larger gaps later. Fill in any remaining space with smaller offcuts.
5. Set the pan over medium-low heat and cook, uncovered and without moving the fruit, for 6 to 10 minutes. Plums cook much faster than apples and can slide from just-softened to mushy quite suddenly, so check at the 6-minute mark and every minute after. You’re looking for the edges to soften and a little juice to bubble up into the caramel; the fruit should still hold its shape and offer gentle resistance when pressed. Take the pan off the heat.
6. Preheat the oven to 200°C (400°F) while the plums cook, if you haven’t already. Fish out the cinnamon stick or star anise. Lay the cold, pricked puff pastry directly over the fruit, then use the back of a spoon or a butter knife to tuck the edge down into the gap between the plums and the inside of the pan, all the way around, rather than leaving it resting on top. This anchors the pastry during baking and gives a cleaner edge once flipped.
7. Bake for 22 to 27 minutes, until the pastry is deep golden brown, crisp, and well-risen, with no pale or greyish patches. If the top is browning too fast before it’s fully set, loosely tent it with foil for the last few minutes.
8. Remove the pan from the oven (the handle will be very hot; use a proper oven glove) and let it rest for 5 to 10 minutes. Resting lets the caramel and plum juices thicken slightly so they cling to the fruit rather than flooding the plate the moment you flip. Run a thin knife around the inside edge of the pan to loosen the pastry.
9. Set a serving plate with a lip or rim (to catch the caramel) upside down over the pan. Holding both firmly together with oven gloves, flip the pan and plate over in one confident motion, then lift the pan away. If any plum pieces stick to the pan, lift them out with a palette knife and press them back into place.
10. Serve warm, cut into wedges, with vanilla ice cream, a spoonful of crème fraîche, or lightly whipped cream.

Notes

• Best eaten the day it’s made, ideally within an hour or two of baking, while the pastry is still crisp against the soft, caramelized fruit. Leftovers keep, loosely covered, in the fridge for up to 2 days, though the base will soften. Reheat gently in a 160°C oven for 10 to 15 minutes to recrisp the pastry; the microwave leaves it soggy.
• Watch the caramel closely in the last minute or two before it turns deep amber, it moves quickly from perfect to burnt once it starts to colour. Once the plums go in, don’t be alarmed if the caramel looks thin and watery partway through cooking; plums release a lot of juice, and the mixture thickens back up again as it bakes under the pastry.
• Fruit choice matters here. Freestone plums or Zwetschgen, where the flesh pulls away from the pit cleanly, pit far more easily than clingstone varieties, and their firmer, less juicy flesh holds its shape better through caramelizing and baking. Choose fruit that gives slightly to gentle pressure but isn’t soft or overripe.

Ingredient substitutions

• All-butter puff pastry is the traditional and preferred choice for this recipe: it browns more evenly, tastes richer, and has more distinct lamination than pastry made with vegetable shortening.
• In Germany, refrigerated Blätterteig from the chilled section (not the freezer aisle) is usually all-butter already and makes a good default choice without extra label-reading.
• In the US and Canada, most supermarket puff pastry, including Pepperidge Farm, is made with vegetable shortening rather than butter. Look specifically for an all-butter brand such as Dufour for noticeably better flavour and browning.
• Homemade rough puff pastry is a reasonable middle ground if you want to make your own without committing to full classic lamination, which offers little visible benefit here since the pastry ends up as a flat lid rather than a laminated showpiece.
• Whatever pastry you use, it must go onto the fruit cold, straight from the fridge. Room-temperature or soft pastry won’t puff properly in the oven and is more likely to shrink back or slide off as it bakes.

Sources consulted

• Jamie Oliver, The world famous tarte Tatin