High-Protein Sourdough French Toast

In a large shallow bowl or rectangle baking dish, whisk together the eggs, milk, vanilla, protein powder, cinnamon and salt. Depending on your protein powder you may need more milk to thin out the batter. It should be thick but still runny. Whisk until no lumps remain. Soak each slice of bread for a couple minutes each side, ensuring the batter fully soaks in the bread. Heat a large skillet over medium heat. Melt about 1/2 tablespoon butter in the skillet then add the soaked bread. Cook for 2-3 minutes each side until golden brown. Serve with butter, powdered sugar, and maple syrup. Note: Keep the cooked French toast in a 300 degree oven to keep warm as you prepare the rest.