Fans of "Harry Potter" may recall the Room of Requirement, a hidden chamber at Hogwarts that Dobby the house elf explained in "Harry Potter and the Order of the Phoenix," "is always equipped with the seeker’s needs." Our food writer, erica_marcus , was put in mind of that room while exploring Bread and Butter Market, a compact month-old shop in Riverhead that is poised to meet any and every takeout, grocery and retail challenge. Need pancakes for breakfast? A pressed panino for lunch? A grab-and-go salad for dinner? Guests are coming and you need paper plates. Or you ran out of laundry detergent or Benadryl. Need a candle? This place has it all. Link in bio for more details. (Photo credit: Erica Marcus) . . . #longisland #longislandny #longislandnewyork #riverhead #longislandfood