These pastries can be found at markets in Landes and Lot-et-Garonne. You will certainly find them if you walk through the markets of Penne-d’Agenais or Touron-d’Agenais. The pastis Gascon can also be found in Gers where it is called a croustade!
Make sure you don’t get mixed up when you’re talking about tourtière landaise or pastis gascon. Indeed, although these two traditional pastries may be cousins, purists might take offence. With a similar composition, both desserts are comprised of a fine layer of pastry covered with slices of apples or prunes (in Lot-et-Garonne), all basted with the famous traditional Armagnac. This is where the great nuance between the two specialities comes in. Whilst tourtière landaise is covered with a thin sheet of flat pastry, the pastis gascon is taller and crunchier thanks to its many layers of delicate pastry which form a chiffonade on top. The best way to learn the differences between these two traditional pastries is by tasting them.