The essence of La’ Shukran, a swank newcomer to the Union Market district, is distilled in one dish: smoky escargot luxuriating in butter, served atop a bed of hummus. The Levantine bistro-bar has made a habit of pairing sumptuous delights with reliable comforts since its September opening. Here, you are invited to sip on arak, the anise-flavored spirit, while relaxing in a velvety booth. You can break bread with friends — a sesame baguette, maybe — as you share wine and enjoy the playful melodies of loud Arab funk music.