- 100g shortcrust pastry
- 4 large endives
- 50g butter
- 5cl walnut oil
- 50g sugar
- 4 thin slices Bayonne ham
- 50g walnuts
- salt and freshly ground pepper
- 30g butter
- 30g flour
- 25cl milk
- pinch of nutmeg
- 25cl heavy cream
- 50g walnuts
- 1/2 lemon juice (plus 1/2 for endives)
- 3cl olive oil
- Coarsely chop all walnuts. Toast in the oven for 3 minutes at 210°C (th.7). Prepare the sauce 2 hours ahead: season the cream with salt and pepper, bring to a boil, then infuse with half the toasted walnuts.
- Chop the endives. In a sauté pan, melt the butter with walnut oil. Add endive leaves, salt, 1/2 lemon juice, and 40g sugar. Stir regularly with a wooden spoon until translucent. Drain on absorbent paper and cool.
- Cut Bayonne ham into strips. Butter and sprinkle the bottom of a 20cm tart tin with remaining sugar.
- Prepare béchamel: In a heavy-bottomed saucepan, melt 30g butter, stir in flour off heat until smooth. Gradually whisk in milk, season with nutmeg, salt, and pepper. Cook for 10 minutes, stirring frequently.
- Preheat oven to 180°C (th.6). Assemble the tarte tatin: Line the mold base with a layer of cooked endives. Top with béchamel, ham strips, and remaining walnuts. Cover with more endives.
- Roll out pastry thinly to a circle larger than the mold. Place over the endives, tucking edges. Bake in the middle of the oven for 15 minutes. Turn off heat and leave for 5 more minutes.
- Warm a serving dish. Unmold the tart immediately onto it. Finish the sauce by mixing infused cream with remaining ingredients; serve cold alongside the tart.

Chef Hubert's Tip: This elegant tarte tatin balances bitter endives with sweet caramel, savory ham, and nutty crunch—a French classic refined for home cooks.