The strawberry birthday cake is one of those rare classics that truly deserves its reputation — not because it’s easy, it isn’t, but because it’s honest. A well-risen sponge, a pastry cream that holds its shape, strawberries that taste like something: it’s a weekend cake, not a weekday evening cake.

Ingredients :
- Strawberries — Get Gariguette or Mara des Bois if you can. Outside of May-June, strawberries that are too large and too pale will ruin everything. A kilo is the right amount: you need some for the inside AND for the decoration on top.
- Heavy cream — You need at least 35% fat. Light cream won’t whip into a decent whipped cream — it stays soft and collapses. Put it in the freezer for 15 minutes before using, along with the bowl and beaters.
- Vanilla bean — A real bean, not bottled vanilla extract. The flavor is incomparable. Split the bean lengthwise, scrape the seeds with the back of a knife, and put both in the milk. The little black seeds in the yellow cream are also a visual marker of quality.
- Flour for the sponge — Preferably T45 flour, otherwise T55. The most important thing: fold it in with a spatula, lifting the batter from the bottom. Never whisk. If you whisk, you break the air bubbles and the sponge will be dense as a brick.
