The tiny North Sea grey shrimps are ubiquitous in Belgium. If you dine at one of the many seafood restaurants in the Sainte-Catherine neighborhood in Brussels, chances are you’ll be presented with a small bowl of these crunchy crustaceans to snack on. The best way to eat grey shrimps is in a shrimp croquette. While there are plenty of bland, frozen, and refried versions served around Brussels, croquettes made from scratch are a revelation. The outside should be a thin, delicately crispy crust. When you break through, the creamy shrimp mixture should be molten and oozing. They make a perfect starter or snack.