In a medium-sized bowl, add raspberries, sugar, and flour. Gently mix until all of the raspberries are covered with sugar and flour.
Remove the dough from the refrigerator. Preheat the oven to 350F. Once a floured surface, roll the dough in a 12 inch circle shape.
Add the raspberry filling to the center of the dough. Gently spread out the raspberries sonthatbthey are in a flat layer, but about 1 or so from the edge of the dough.
Gently fold over the edges of the dough 1 to 2 over the raspberry filling . The entire dough circle will now have a crust on the edge of the galette.
Move the galette onto a parchment lined baking sheet
Crack 1 egg in a bowl and scramble. Then, using a brush, brush the edges of the crust with egg and then sprinkle with sugar. This will give the crust a little extra golden brownness.
Bake it for 45 to 55 minutes, depending on how cold your crust was when starting to bake.
When done, the crust will be golden brown, and the center filling will be slightly bubbly.
Your raspberry Einkorn galette is now ready to enjoy! I hope you enjoy this beautiful and tasty treat as much as we do!