I made these waffles with sabudana (sago) and coriander yesterday. My daughter lapped it up! Easy to make too - Soaked the sago in curd and a little bit of water for 4-5 hours, add 1-2 boiled and mashed potatoes, jeera (cummin), coriander paste, salt to taste, chillies (optional)  and put it on your waffle plate. Comes out really well.!