Make the Batter:
In a mixing bowl, whisk together the eggs, whey protein, vanilla extract, cinnamon, milk, sweetener, and a pinch of salt until fully smooth.
Soak the Bread:
Dip each slice of bread into the batter for a few seconds per side, making sure it absorbs well. Set aside any leftover batter to use during cooking.
Cook the First Side:
Spray a non-stick frying pan with low-calorie cooking spray and place over medium heat.
Add the soaked bread slices to the pan and cook for 2 to 3 minutes until the underside is golden and starting to firm up.
Add Extra Batter and Flip:
Spoon any leftover batter evenly over the top of each slice while still in the pan.
Flip the slices carefully and cook the second side for another 2 to 3 minutes. Press lightly with a spatula to help them set and cook through.
Serve and Enjoy:
Plate up your protein-packed French toast and add your favourite toppings.