Preheat the oven to 400 degrees F and line a baking sheet with parchment paper.
Combine the apples flour, apple pie spice, lemon zest, 1/2 cup of the sugar and 1 tablespoon of the maple syrup in a large bowl. Mix together to thoroughly coat the apples.
Transfer the apple mixture into the pie crust. It will be mounded slightly above the edge. Pack the apples down to create an even layer for the bacon lattice.
Place 6 slices of bacon horizontally across the pie. The edges of each slice should touch, but not overlap. Working with the remaining 6 slices, weave the bacon in an over-under pattern to evenly cover the top of the pie. This should be done by lifting alternating slices of the horizontal bacon and vertically placing a slice of bacon over or under as needed to create a woven design. Use kitchen shears to trim the bacon that hangs over the edge of the pie tin, making sure the bacon covers the rim of the pastry because it will pull back as it bakes.
Cover the pie with aluminum foil, place it on the prepared baking sheet and bake for 25 minutes.
Meanwhile, whisk the remaining 2 tablespoons sugar and 1 tablespoon maple syrup in a small bowl. Stir in the vinegar and sprinkle with a generous pinch of black pepper. Set aside.
After the pie has baked 25 minutes, remove the foil and gently brush the bacon lattice with the maple glaze. Return the pie to the oven and continue baking, uncovered, until the bacon is brown and crispy and the apple mixture is bubbly, about 35 minutes more. Allow the pie to cool completely before slicing. Serve with whipped cream if using.
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