Satsumaimo (Sweet-Potato) Pancakes

I accidentally bought a white-fleshed sweet potato instead of an orange sweet potato, so I decided to make this old favorite from Japan. In the US, sweet potatoes with hard, orange flesh (annôimo, 安納芋) are more common, but in Japan, sweet potatoes with a softer, white/yellow flesh (satsumaimo, サツマイモ) are what you’ll find in the grocery…