Step 1: Prepare the Fudge Base

1. In a medium saucepan, combine granulated sugar, unsalted butter, heavy cream, cinnamon sugar mix, and a pinch of kosher salt.
2. Warm the mixture over medium heat, stirring constantly, until the sugar and butter fully dissolve.
3. Once the mixture reaches a gentle boil, reduce the heat slightly and let it simmer for 4–5 minutes, stirring occasionally.
4. Remove the saucepan from the heat and stir in the white chocolate morsels and marshmallow cream. Mix thoroughly until smooth and creamy.

Step 2: Pour and Set the Fudge

1. Line an 8×8-inch square pan with parchment paper, leaving an overhang for easy removal.
2. Pour the fudge mixture into the prepared pan and spread it evenly with a spatula.
3. Allow the fudge to cool to room temperature, then refrigerate it for 3–4 hours, or until completely set.

Step 3: Make the Maple Cinnamon Drizzle

1. In a small bowl, whisk together powdered sugar, maple syrup, heavy cream, and cinnamon sugar mix.
2. Adjust the consistency: add a splash of cream if too thick or a bit more powdered sugar if too thin.
3. Whisk until smooth and drizzle-worthy.

Step 4: Decorate and Serve

1. Drizzle the maple cinnamon topping over the set fudge, creating swirls or zigzag patterns.
2. Let the drizzle set for about 15–20 minutes.
3. Once set, lift the fudge out of the pan using the parchment paper.
4. Slice it into small squares or rectangles and serve.