Alex Eskin’s menu
French midday snack (the lunch sandwich)

Jambon-Beurre from Stays at IHÉS

TravelEvocation🧂facile5 min

A crusty half-baguette, split, generously buttered and filled with thin slices of cooked ham. Nothing more, nothing less: the French national snack, perfect when your mind is elsewhere, on an open problem.

French midday snack (the lunch sandwich)

A crusty half-baguette, split, generously buttered and filled with thin slices of cooked ham. Nothing more, nothing less: the French national snack, perfect when your mind is elsewhere, on an open problem.

At Bures, when you're deep into a problem, you don't want to sit down for an hour-long meal — you just want something to keep you going. The jambon-beurre is exactly that: a baguette, good butter, ham, and you head back to the blackboard chewing. I've always felt that France understands something about that — keep it simple, but with real butter and real bread. People underestimate how much a good snack can save the end of a proof.
Alex Eskin
Ingredients
  • Half-baguette (traditional)1 (base)
  • Churned buttergenerous (binder and flavor)
  • Cooked ham2 slices (filling)
How it was made : The jambon-beurre is still the best-selling sandwich in France. Born in the 19th century with the democratization of the baguette and Paris ham, it became the universal quick lunch for workers, students — and visiting researchers.

See also