1. Boil potatoes in salted water until you can pierce with fork
2.  Saute garlic scapes
3. While potatoes are boiling, in a large bowl, mix all spices, garlic scrapes and egg (whisk preferable). Add cannellini beans and cooked sweet potato and use whisk to break them up. Stir in 1/2 cup panko (reserving the other 1/2 cup for later)  and then  place bowl in the fridge for 15-20 minutes. This helps form them into patties.
4.  Remove mixture from fridge and form into 4-5 equal patties,  then roll in 1/2 cup reserved panko crumbs to form a light coating. This will serve as a crust (see picture below)
5. Heat a large skillet over medium heat and add 2 tablespoons olive oil. then place in the skillet once hot. Since the mixture can be wet and messy, do not move until they are fully cooked and golden on one side! This takes about 5-6 minutes. Then, add more oil if needed (this really helps cook them) and flip burgers very gently. Cook for another 5-6 minutes. Worth the wait to get them crispy!
6. Toast buns if desired.