Spicy Sweet Potato Curry

I love soups and curries. DH bought an Indian cook book a year ago and has been working through different Indian-inspired recipes - one of the things I like most is the addition of dried red chilies to the soups and curries he has been making. He makes a mean lentil dish with chilies and spinach...it's so spicy and addictive that I've been known to hide it from him and keep it to myself. I'd