In a medium bowl, whisk together ¾ cup canned pumpkin purée, ¼ cup light brown sugar, 1 tablespoon pure maple syrup, ½ teaspoon ground cinnamon, ¼ teaspoon ground ginger, ¼ teaspoon ground nutmeg, ⅛ teaspoon ground cloves, pinch of salt, and 1 tablespoon all-purpose flour until smooth. The filling should be thick enough to mound on a spoon (Note 11). Set aside.
In a small bowl, whisk together the 1 egg (beaten) and 1 tablespoon milk or cream. Cover and refrigerate until needed.
Roll out 1 package pie dough on a lightly floured surface (Note 12). Cut into 3–4 inch rounds or use festive cutters (Note 1). Gather and reroll scraps as needed.
Place half of the dough cutouts on a parchment-lined baking sheet.
Spoon 1–2 teaspoons of filling into the center of each (Note 8).
Brush the edges with egg wash.
Gently stretch the top cutouts slightly (to accommodate filling), then place over the bottoms.
Press edges with a fork to seal firmly, checking for gaps (Note 13).
Use a sharp knife to cut small steam vents in the tops (Note 9).
Refrigerate assembled pies for 30 minutes (Note 10) while preheating the oven to 375°F (190°C).
Brush tops with egg wash and sprinkle generously with coarse sugar. Bake for 25–30 minutes, until golden brown, crisp at the edges, and with filling bubbling slightly through the vents (Note 11).
Transfer to a wire rack and let cool slightly before serving.