Line a 9x9 baking dish with parchment paper. Place the rolled out pie crust in the baking dish and press in to fit the shape of the dish. Use a paring knife to cut excess pie dough, leaving just the flat bottom of the dish covered with uncooked pie crust. Place in a preheated oven for 9 minutes, baking until lightly browned
In a saucepan, add the white chocolate chips, brown sugar, corn syrup, evaporated milk, butter and molasses. Stir together over medium heat. Keep mixing until everything melts together and is completely combined. Remove from the heat and add the maple extract and salt, stirring together.
Once the pie crust is out of the oven, pour the fudge mixture on top of the crust. Spread evenly. Pour the chopped pecans all across the top of the fudge, pressing them lightly with your hands.
Let cool at room temperature or in the fridge for 1 hour before cutting into squares. Wrap all leftovers once cooled with plastic wrap and store in an airtight container on the counter.