Russian Cabbage Pie

This much Russia knows: the chilly, early days of spring go hand-in-hand with cabbage. Throughout the countryside, rows of cabbages can be found poking through the ground even as the last freeze thaws. The tough, squeaky heads are impenetrable to all but the peskiest of creatures, but give them some attention with a sharp knife and persistent flame and you’ll see why cabbage is the pride of Russian home cooking. From cabbage rolls to borscht, Russian cookbooks are fat with ideas to use up the spring harvest – and at a mere $2-$3 per head at the market, it’s tempting to attempt them all. But if I had to pick just one, cabbage pie seems to shows off the humble vegetable’s truest potential. Cook it up with little more than butter, a smattering of onion and lay it between sticky spoonfuls of sour cream batter… bake, then slice into neat squares and you’ll have a feast fit for any potluck. (We took it over to our neighbor’s potluck party; the casserole was cleaned out in mere minutes!) The ingredients …