Martha's favorite kielbasa is "chunky, meaty, slightly garlicky, with natural casing and not too much fat." Her two favorite purveyors are Sikorski Meat Market, in Brooklyn's Greenpoint neighborhood, and Chester's Smokehouse, in Albany, New York.
An ode to the BLT, this breakfast-ready version uses canadian bacon for a meatier twist and relies on watercress for the "L" in the sandwich, which adds a fresh, almost citrus-like crunch to each bite.
Chard leaves turn rich and tender when cooked; here, the mild stems provide a vivid topping. To ensure that the phyllo dough does not become dry and brittle, thaw it completely in the refrigerator; keep it covered with a towel as you work.