Can I substitute Carré Frais with another type of cheese, and if so, which one works best?
Yes. Substitute Carré Frais with any mild, fresh cheese that softens but doesn’t liquefy—plain cream cheese, fresh goat cheese (chèvre), or ricotta drained for 10 minutes all work well. Of these, a log of fresh goat cheese is often preferred because it offers the same tangy creaminess and holds its shape nicely under the puff pastry.
Can I prepare the zucchini tarte tatin ahead of time, and what’s the best way to reheat it without losing the crust’s crispness?
Yes—bake the tarte tatin completely, let it cool, then refrigerate it (loosely covered) for up to 24 hours. To re-crisp, place the inverted tart straight from the fridge onto a pre-heated baking sheet in a 190 °C (375 °F) oven for about 8–10 minutes; the hot sheet and dry heat restore flakiness far better than a microwave, which would soften the pastry.
Can I make this zucchini tarte tatin gluten-free, and what pastry should I use?
Yes—substitute the regular puff sheet with a ready-made gluten-free puff pastry (widely sold in the freezer section and usually based on rice, corn, or tapioca flours). Thaw it fully, work while still cool (GF dough is delicate), then follow the same baking time and temperature; the tart will puff and brown almost identically.