Utilize a rolling pin to flatten each slice of bread. Proceed to carefully remove the crusts from each slice.
Position a cooked sausage link at the edge of a bread slice and roll the bread around the sausage. Ensure this process is repeated for the remaining sausage links and bread slices.
In a mixing bowl, combine the eggs, milk, cinnamon, and vanilla extract to create a uniform mixture.
Immerse each sausage and bread roll-up in the egg mixture, ensuring an even coating.
Cook the roll-ups in a skillet with a coating of unsalted butter. Continue cooking until all sides of the roll-ups attain a golden-brown hue.
Serve the prepared Sausage French Toast Roll-Ups promptly.