01 - Set oven temperature to 375°F (190°C) to prepare for baking both chips and sweet potatoes.
02 - Brush both sides of the flour tortillas with melted unsalted butter. Mix granulated sugar with ground cinnamon and sprinkle evenly over the tortillas. Cut each tortilla into 8 wedges and arrange in a single layer on a baking sheet.
03 - Bake the tortilla wedges for 8 to 10 minutes, flipping once halfway through, until they are crisp and golden brown. Allow chips to cool completely before assembly.
04 - Toss diced sweet potato with vegetable oil, ground cinnamon, cayenne pepper, and a pinch of salt. Spread the sweet potato pieces evenly on a lined baking sheet and roast for 15 to 20 minutes, turning once, until tender and slightly caramelized.
05 - In a microwave-safe bowl, combine semi-sweet chocolate chips, maple syrup, and milk. Microwave in 20-second intervals, stirring each time, until mixture is smooth and fully melted. Blend in chili powder and a pinch of salt.
06 - Arrange cinnamon-sugar tortilla chips on a large platter. Distribute roasted sweet potatoes, dried cranberries, toasted pecans, and mini marshmallows evenly on top.
07 - Drizzle with warm maple-chili chocolate sauce. Garnish with whipped cream and fresh orange zest if desired. Serve immediately for best texture.