Start by preheating your oven to 400 degrees.
To assemble your tart, start by rolling out both halves of your dough into rectangles that roughly measure 12 inches long by 6 inches wide.
Once rolled out, set aside and grab 2 9x13 baking sheets. Line the baking sheets with parchment paper, and lightly grease both pieces of parchment with butter.
Next, drizzle 2 Tablespoons of Honey directly onto each parchment-lined baking sheet (1/4 all together), and spread it into a roughly 9-inch long by 4-inch wide rectangle on each sheet (slightly smaller than your puff pastry dough).
Once your honey has been spread, evenly distribute half of your raisins over each rectangle of honey in whatever pattern you like (using all of the raisins between the 2 baking sheets).
Next, begin layering your apples over the raisins on each sheet in whatever pattern you like (I prefer layering them like shingles on a roof, where they are slightly overlapping, but you can still see the color of the peel).
Once the apples have been laid down, sprinkle them with the walnuts, and cover them with your 2 sheets of puff pastry (one for each tart).
Once the puff pastry has been laid, place the baking sheets into the oven on separate racks, and bake them for 10 minutes.
Once the 10 minutes have passed, rotate the baking sheets in the oven, switching which rack they are baking on, and continue baking for another 10 minutes, or until the puff pastry is golden brown and flakey.
Once the tarts have baked, remove them from the oven and allow them to slightly cools for 3-5 minutes (you don't want them to cool all the way in case any caramelized honey causes them to stick to the parchment).
Once slightly cooled, using a cooling rack, flip the tarts so they are face-side up and you can see their beautiful apple filling. Remove the parchment, and allow to cool to your desired temperature before slicing and serving!