Mąka żytnia do wypieku domowego chleba, rye flour for baking homemade bread, a sign fittingly hand-drawn not on white paper but on brown cardboard. Also for sale at this Polish shop: frozen (and presumably imported) mushrooms; smoked fish that appear to sing (though it's hard to make out the scribbled tune).
Previously, from the other side of the window: an extra-plump makowiec (mah-Koh-vee-ets), or poppy-seed cake, earned bonus points for a ridgeline of crushed walnut held fast by a sugary glaze.
Star Deli & Bakery
176 Nassau Ave. (Diamond-Humboldt Sts.), Greenpoint, Brooklyn
718-383-6948