You'd need the cranial kinesis of a boa constrictor to get one of Olga's absurdly gigantic sandwiches between your jaws. The four-layer chicken schnitzel at this Irving Park deli is the crowning glory in a small but astonishing repertoire, but it faces stiff competition. Breaded pork loin, half the thickness of a phone book, obliterates a comically insignificant slice of rye; a hunk of fatty sliced smoked pork butt is stacked atop the bread like blocks on the Pyramid of Cheops. Pork chop, bratwurst, hamburger or deli meat, whatever you ask for, you'll be humbled by the heft and the price you pay for it. These sandwiches are $5 apiece, and worth waiting out Olga's methodical pace.