In a small bowl, add the ricotta cheese, powdered sugar, almond extract, and lemon zest, and mix together until smooth and creamy.
Lay a piece of parchment paper on a baking sheet. Roll the puff pastry 3 times each way, to spread a little thinner.
Down the center spread the ricotta mixture, leaving about 4-inches on either side. Top with the blueberries.
On either side, make slits with scissors or a sharp knife until you reach the ricotta. Next, pull each strip up from each side and cross it over each other in the center, to make a braid.
Make an egg wash:
Take the egg whites from one egg, and whisk together with the water to make an “egg wash.” Brush the top of the braid with the egg wash. Sprinkle it with turbinado sugar.
Bake for 15-20 minutes or until golden on top and baked through.
Let the pastry cool for 10 minutes. Remove to a serving platter dust with powdered sugar. Slice and serve!