You can make super high protein bread by adding pure wheat gluten. I’ve gotten amazing results from mixing all purpose and whole grain for a delicious bread. The protein content in American flower is so low adding extra wheat gluten actually makes the bread taste better, and it’s pure protein. I have a bare bones recipe that barely tells the whole story but you have to experiment yourself desu. Took me about 6 loaves to get it right. Make sure to use parchment paper when baking