To make the mashed sweet potato: simply cut the potato into cubes and boil it until soft. Drain, mash, and set aside. (You can also use leftover mashed potatoes, cook it in the microwave, or scoop out the insides of a roasted sweet potato.)
Using your food processor (or mad knife skillz) mince the onion, jalapeño, and carrot and place in a large bowl. Add remaining ingredients (sweet potato, tuna, lemon juice, vinegar, and spices) EXCEPT the egg. Mix well. Taste and add more salt or spices as necessary. Then add the eggs and mix well. (You probably have to mix with your hands!)
Divide into 12-14 cakes and press into greased muffin tins (or use silicone muffin liners).
Bake on 350ºF for 20-25 minutes, or until slightly brown and crispy on top.
Notes
Store these cakes in the fridge or freezer. You can eat them cold, reheat them in the microwave, or reheat them by crisping them up in a frying pan with a little coconut oil. Enjoy!