Use a rolling pin or your hands to flatten the bread (slice crusts off, if desired).
Place a sausage link on the front edge of the bread and roll up tightly. Set aside.
Add eggs, milk, sugar, cinnamon, vanilla, and flour to a shallow dish or blender and mix until smooth.
Preheat griddle or skillet over medium heat. Grease well with butter.
Dip sausage roll ups into the egg mixture, rolling gently to coat all sides, and then place on hot griddle.
Cook for a few minutes, turning gently as you go, until golden brown on all sides. Serve warm with syrup.
Make Ahead Instructions: The egg mixture can be made up to 1 day ahead of time. Cooked leftovers can be stored in a sealed container for 1-2 days. Reheat in microwave, toaster oven, griddle or air fryer.Freezing Instructions: Store in a freezer safe container or bag with as much air removed as possible to prevent freezer burn. Reheat in microwave, toaster oven, griddle or air fryer.Variations:
Nutella French Toast Rolls: Spread Nutella near the end of the piece of bread. Roll up tightly, dip in egg mixture, and cook according to recipe.
Strawberry Cream Cheese: Spread cream cheese near the end of the piece of bread and add diced strawberries, or some strawberry jam. Roll up tightly, dip in egg mixture, and cook according to recipe.
Peanut Butter Banana: Spread peanut butter near the end of the piece of bread and top with diced bananas. Roll up tightly, dip in egg mixture and cook according to recipe.