GRILLED SHRIMP WITH OLD BAY AND AIOLI

Steps:

• Step 1 Prepare a grill for medium-high heat. Lightly oil grate. Using kitchen shears, snip down back of each shrimp shell along the vein, stopping at the tails. You may end up cutting a little but of the flesh, but the aim here is to make it easy to peel the shell later (if you choose!) without compromising the shrimp's tenderness. The shells are a protective barrier, so keep them on when grilling.
• Step 2 Transfer shrimp to a medium bowl. Add 1 Tbsp. oil, two-thirds of garlic, 1½ tsp. Old Bay, and ¾ tsp. salt and toss to combine. Let sit 10-15 minutes while you prepare the aioli.
• Step 3 Whisk egg yolk and remaining garlic in a medium bowl. Finely grate 1 tsp. lemon zest into egg mixture. Whisking constantly, gradually stream in remaining ½ cup oil until thick and pale yellow. Stir in juice of one lemon half. Season well with salt-it should taste really vibrant.
• Step 4 Cut remaining lemon in half. Grill shrimp and 3 lemon halves (cut sides down) until shells are golden brown and charred in some spots and flesh is opaque and cut sides of lemons are deeply caramelized, 1-2 minutes.
• Step 5 Spread aioli on a platter. Arrange shrimp and charred lemons over. Season lightly with more Old Bay.