1(9")refrigerated pie crust (store bought or homemade)
Preheat oven to 425°F. Line a baking sheet with parchement paper or a silicone baking mat; set aside.
In a large bowl combine the blueberries, sugar, flour, and lemon juice; set aside.
Roll the pie dough to a 14" circle and transfer to prepared baking pan. Spoon blueberry mixture into the center of the dough leaving a 3 inch border. Fold this border over the fruit. Top the center with dots of butter.
Bake for 25-30 minutes or until the crust is golden brown. Let stand for 5-10 minutes before serving.
Cover well and store in the refrigerator for up to 3 days. Can reheat slightly in the microwave if desired.
Allow the galette to sit for 5-10 minutes when removing from the oven before serving.