Whether you’re vacationing in New England or elsewhere, summer is the time for an authentic, sea-soaked clambake on the beach. With the right grill setup and loads of salty seaweed, this seaside feast can be reproduced on just about any sandy shore — barbecue laws permitting, of course. Head down to the water’s edge to collect the seaweed the old-fashioned way, or get it from your local fishmonger. From there, it’s all about assembly. Here’s how to build the quintessential clambake, layer by layer.