The sweet tang of applesauce adds a contrasty punch to the potatoes and green onions, which make up latkes, while also cutting the grease from frying them. On the other hand, sour cream, while also adding its own version of tartness, can weigh the fried potato cakes down with dairy.

Latkes also aren't hash browns. Hash browns are all about crispy, burnished crust, with just enough potato-y center to gain a third dimension and a little give. A latke's interior should be plump and slightly cakey, but yielding, with recognizably rustic strands of potato intertwined with onion.