01 - Set the oven to 375°F (190°C) and allow to fully preheat.
02 - Brush both sides of each flour tortilla with melted unsalted butter, then combine granulated sugar and ground cinnamon; sprinkle mixture evenly over each tortilla.
03 - Slice each tortilla into 8 wedges. Arrange the wedges in a single layer on a baking sheet. Bake for 8 to 10 minutes, flipping halfway through, until crisp and golden brown. Transfer to a rack and allow to cool completely.
04 - Combine diced sweet potatoes with vegetable oil, ground cinnamon, cayenne pepper, and a pinch of salt. Spread evenly on a parchment-lined baking sheet and roast for 15 to 20 minutes, turning once, until fork-tender and caramelized at the edges.
05 - In a microwave-safe bowl, mix semi-sweet chocolate chips, pure maple syrup, and milk. Heat in 20-second intervals, stirring after each, until fully melted and smooth. Blend in chili powder and a pinch of salt.
06 - Layer cinnamon-sugar tortilla chips on a large serving platter. Evenly distribute roasted sweet potatoes, dried cranberries, toasted chopped pecans, and mini marshmallows.
07 - Drizzle generously with warm maple-chili chocolate sauce. Garnish with whipped cream and orange zest if desired. Serve immediately.