The Sesame crackers

Ingredients for 30/40 crackers:
170 gr. flour type 0
3 tbsp sesame seeds
1 egg white
20 gr. butter
20 ml. olive oil
1 lemon
15 gr. chopped fresh thyme
60 ml water cooled with ice cube
Salt and pepper

   In a bowl, put the flour with the zest of a lemon grated finely, add the thyme, salt and pepper, a little more that you like, 2 tablespoons of Sesame, and mix the ingredients.
Add the olive oil and butter and started to work with your hands along with the other ingredients.Once you have a dough similar in consistency to breadcrumbs, unite water.
On a pastry Board start to knead until the whole thing won't be homogeneous and firms.
   With a rolling pin roll out the dough with a very thin sheet and then, with a circular or a mold with cookies (what I used) with a diameter of approximately 5 cm, cut the crackers.Heat the oven to 200 degrees and, at the same time, roll out the crackers on a baking sheet with parchment paper.
Spennellateli with the white of an egg and sprinkle with the Sesame remaining Bake and cook until they are golden.
Remove from oven and let cool on a cold surface (such as marble or stainless) better still on a grid.