Preheat the oven to 375°F.
Place a large piece of parchment paper on the counter and dust it with flour. Place the chilled dough in the center of the parchment paper and roll it out into a rough circle about 14-16 inches in diameter.
If butter starts to break through the dough, lightly coat it with a bit of flour to help seal it, and continue rolling.
As if you are topping a pizza, add the filling to the center of the dough and spread it around. Leave about 2-3 inches of space near the edges of the galette dough.
Fold the corners of the dough on top of the filling, making a circular crust to keep the filling in.
Keeping the galette on the parchment paper, transfer it to a baking sheet.
Lightly brush the crust with a thin layer of maple syrup, and sprinkle with salt. Optional, add a circular pecan topping for decoration.
Bake at 375°F for 20-23 minutes, or until the crust is golden brown.
Let cool for 10-15 minutes, then slice and serve!