Preheat your oven to 400F and reserve a large cookie sheet.
Place a piece of parchment paper on your work surface, and flour lightly, along with your rolling pin.
Roll out your pie dough into a rough circle, about 1/8 of an inch thick.
Next, spread your flour/almond meal mix into the center of the dough and pat to spread out slightly.
Add the apricot filling on top and spread, leaving about two inches of the pie dough as a border (this will be folded over).
Begin to fold sections of the pie dough edges towards the center, slightly overlapping as you go. Be careful not to tear the dough near the bottom, as you’ll spring a leak, and all of your delicious juices will escape! (so if you do tear the dough, patch it up!) Gently press and pinch as you fold the edges.
Next, an egg wash: Whisk 1 egg and a small amount of milk in a bowl. Brush onto the pie dough with a pastry brush, to help seal any small leaks and create a lovely glossy finish once baked. Sprinkle the pie dough with some raw sugar to finish.
Transfer the galette, on the parchment paper, onto your cookie sheet.
Bake for 1 hour, until the center is bubbling.
Let cool to room temperature before serving.
*Optional Glaze; Reduce the leftover sugar syrup on medium high heat.
Boil until large bubbles form and pull from the heat. Gently brush the syrup over the baked and cooled galette, fruit filling only.