Bread: You can use any bread for this high-protein french toast recipe. My favorite options are white, whole wheat, whole grain, gluten-free, high-protein, low-carb, or challah.Protein Powder: I used vanilla whey, but feel free to use your favorite flavor or pea protein powder. I left a list of flavor variations in the blog post above. Make it Vegan: You can make this high-protein french toast vegan by omitting the eggs and using 3 – 4 flax eggs instead. If you do this, I recommend adding ...