- Preheat the oven at 150°C. - In a bowl, mix the baking powder, flour and crumbled Gavottes. - In another bowl, place the egg yolks and add the sugar whisking continuously until the mixture turns pale. Add the melted butter. - Add the flour/Gavottes mixture and stir. - Place a small amount of dough in half-moon-shaped silicone moulds; each should be about 5 mm thick. - Place some parchment paper onto each biscuit base and weigh down (ceramic baking beans, dry beans, etc). - Bake for 20 to 25 mins. - Remove from the oven, leave to cool before unmolding and top with lemon curd.