Mix the flour, sugar, brown sugar, baking powder, coriander, cumin, turmeric, cayenne, and salt and pepper.

Add the eggs and just enough milk to the dry ingredients to make a stiff batter. Add the potatoes and mix. The batter should be moist but not runny; if too stiff, add more milk.

Heat ¼ inch oil in a cast iron pan or heavy-bottomed saute pan until it shimmers. Drop in the batter by tablespoons and flatten. Cook several minutes on each side until golden. 

Drain on paper towels and serve.