When I asked chef Pierre Wynants, the celebrated 3-star chef-owner of Comme Chez Soi in Brussels, who is capable of celestially sophisticated desserts, for a recipe from his childhood in Belgium, this tart is what immediately came to his mind. It’s rustic and homey, the custard filling crusted with butter and sugar.
If you’d like to make this in a 9- or 9½-inch pie pan instead of a quiche pan, multipl