Step 1: Prepare the Cinnamon Sugar Filling

• In a small bowl, combine the softened 1/4 cup of unsalted butter, 1/2 cup of packed light brown sugar, and 1 ½ tablespoons of ground cinnamon.
• Use a fork or a small spatula to mix these ingredients thoroughly until they form a smooth, spreadable paste. Ensure there are no large clumps of brown sugar or pockets of unmixed butter or cinnamon. The consistency should be similar to thick frosting. Set this bowl aside while you prepare the bread.

Step 2: Prepare the Bread

• Take your 10-12 slices of white sandwich bread. Using a sharp knife (a serrated knife often works well), carefully trim the crusts off all four sides of each slice. While technically optional, removing the crusts makes the bread much easier to flatten evenly and roll tightly without cracking. It also results in a more tender final product. You can save the crusts to make breadcrumbs or croutons later!
• Place one crustless bread slice on a clean, flat surface (like a cutting board). Using a rolling pin, firmly roll the bread slice flat, compressing it to about 1/8-inch thickness. You want it thin and pliable, but not so thin that it tears easily. Repeat this process for all remaining bread slices. Flattening is crucial for achieving a tight roll and preventing the roll-ups from being too bulky.

Step 3: Assemble the Roll-Ups

• Take one flattened bread slice. Spread a thin, even layer of the prepared cinnamon-sugar filling over the entire surface of the bread, leaving a very small (about 1/4-inch) border along one of the longer edges. Don’t overfill, as this can cause the filling to squeeze out excessively during rolling and cooking. A teaspoon or two of filling per slice is usually sufficient.
• Starting from the edge opposite the clean border, carefully and tightly roll the bread slice up into a spiral log. The clean border you left should help seal the edge. Press the seam gently to encourage it to stay closed.
• Place the completed roll-up seam-side down on a plate or baking sheet. Repeat this process with the remaining flattened bread slices and cinnamon-sugar filling.

Step 4: Prepare the French Toast Egg Mixture

• In a shallow dish (like a pie plate or a brownie pan – something wide enough to easily dip the roll-ups), whisk together the 2 large eggs, 1/2 cup of milk, 1 teaspoon of vanilla extract, the optional 1 tablespoon of granulated sugar, and the pinch of salt.
• Whisk vigorously until the mixture is homogenous – the yolks and whites should be fully combined, and the mixture should be smooth and slightly frothy. Ensure there are no streaks of egg white remaining.

Step 5: Dip the Roll-Ups

• Carefully take one cinnamon roll-up and place it in the egg mixture. Gently roll it around or use a fork to ensure all sides are coated in the egg wash.
• Don’t let the roll-ups soak for too long – just a quick dip (5-10 seconds) is sufficient. You want the exterior coated, but you don’t want the bread to become completely saturated and fall apart.
• Lift the coated roll-up out of the egg mixture, allowing any excess egg wash to drip back into the dish. Place the dipped roll-up back onto the plate or baking sheet, seam-side down if possible. Repeat with the remaining roll-ups.

Step 6: Cook the French Toast Roll-Ups

• Place a large non-stick skillet or griddle over medium heat. Allow it to heat up properly – a drop of water should sizzle gently.
• Add about 1 tablespoon of butter or oil (or a mix) to the hot skillet. Swirl the pan to coat the bottom evenly.
• Carefully place several dipped roll-ups into the skillet, seam-side down first. This helps to further seal the seam as it cooks. Don’t overcrowd the pan; cook in batches if necessary to ensure even cooking and browning. Leave some space between each roll-up.
• Cook for about 2-3 minutes per side, turning gently with tongs or a spatula, until all sides are beautifully golden brown and slightly crispy. The sugar in the filling will start to melt and caramelize, and the egg mixture will cook through. Adjust the heat as needed – if they are browning too quickly, lower the heat to medium-low to ensure the inside gets warmed through without the outside burning. The entire cooking process per batch should take about 6-8 minutes.
• As the roll-ups finish cooking, transfer them to a wire rack placed over a baking sheet (this prevents the bottoms from getting soggy) or a paper towel-lined plate.
• Add more butter or oil to the skillet as needed for subsequent batches.

Step 7: Prepare the Vanilla Glaze (Optional)

• While the roll-ups are cooking or cooling slightly, prepare the glaze if using. In a small bowl, whisk together the 1 cup of sifted powdered sugar, 2 tablespoons of milk or cream, and 1/2 teaspoon of vanilla extract.
• Whisk until smooth and lump-free. If the glaze is too thick, add more milk or cream, one teaspoon at a time, until it reaches a drizzly consistency. If it’s too thin, add a bit more sifted powdered sugar.

Step 8: Serve

• Arrange the warm Cinnamon Roll French Toast Roll-Ups on a serving platter.
• Drizzle the vanilla glaze generously over the warm roll-ups using a spoon or a whisk. Alternatively, you can serve the glaze on the side for dipping.
• Serve immediately for the best texture and temperature. Enjoy the delightful fusion of cinnamon roll and French toast flavors!