A vibrant Negroni alongside grilled Tall Timbers (Double T) oysters with ‘nduja brown butter. | Tierney Plumb/Eater DC Fish Shop, the acclaimed seafood star out of Scotland that famously counts King Charles III as a customer, planted roots across the pond last spring along the Southwest Wa terfront. At its first stateside location, chef Ria Montes — a newly named Rising StarChefs — celebrates the bounty of the Chesapeake Bay, from roasted rockfish to abundant seafood boils for brunch to buttery bivalves from Maryland’s Double T Oyster Ranch that are hand-delivered by its owner (who also lent a hand in the design).  What to order Smoked trout-topped crumpets ($7 each), an all-time best seller at the Ballater original, will soon swap in crab once the mid-Atlantic season pops off in May. Smoke In Chimneys’ clean rainbow trout that swims in Virginia springs builds an excellent grilled main atop a bed of fragrant saffron orzo and circumference of clams ($32). Braised greens play well with applewood smoked bacon in the same side skillet ($7). What to drink The Negroni ($18) takes tips from its Scottish sibling, garnishing the ruby-red glass with the invasive (albeit pretty) hardy ice flower.  A bar composed of shattered-and-shellacked wine bottles gets crowded during its “gilded hour” (3 p.m. to 6 p.m. on weekdays), when drinks are $10, oysters are $2, and The vibe Fish Shop sits at the foot of the Atlantic’s splashy headquarters, which means sit-down sightings of top investigative journalists — like its editor-in-chief who broke that crazy Signalgate story a year ago — are likely.  Fish Shop’s London-based hospitality group Artfarm has ties to the high-powered art world, so lots of thought obviously went behind the look. Enter the galley to encounter a floating shoal of fish made of woven branches and a massive plaid tartan scrunched up to resemble the ocean. Insider tip Weekend-only seafood boils full of lobster, clams, mussels, and chorizo ($80) take full advantage of its outdoor patio, where there’s no shame in getting messy with your hands (and dropping shells in the process). ...read more read less