Begin by removing the crusts from the slices of white sandwich bread. Using a rolling pin, flatten each slice gently to about a quarter-inch thickness.

In a small mixing bowl, combine the melted butter, brown sugar, and ground cinnamon. Stir until smooth. Spread this mixture across each flattened bread slice, leaving a small border around the edges.

Starting from one end, tightly roll each slice of bread, applying gentle pressure to seal the edges.

In a shallow bowl, whisk together the large eggs, milk, additional ground cinnamon, and vanilla extract until well combined.

Place a non-stick skillet over medium heat and add 2-3 tablespoons of butter, allowing it to melt and coat the surface evenly.

Carefully dip each cinnamon roll-up into the egg mixture, ensuring even coverage. Once coated, place each roll seam-side down in the skillet.

Cook the roll-ups in the skillet for 2-3 minutes on each side, or until golden brown and crispy. Remove from the skillet and transfer to a plate.

Serve the warm Cinnamon Roll French Toast Roll-Ups immediately, dusted with powdered sugar and paired with maple syrup or fresh fruit.