My superbowl appetizer

I wanted something completely unique and fun for the superbowl or a party appetizer. This caught my eye.

Shrimp with Green Goddess sauce

Sauce
1-2 large garlic cloves
2 cups mayonnaise
1 cup (packed) chopped fresh parsley
1/4 cup chopped fresh chives
1/4 cup chopped green onions (white and pale green parts only)
3 tablespoons chopped fresh tarragon
4 canned anchovy fillets
1 tablespoon rice vinegar

Shrimp

4 pounds uncooked unpeeled jumbo shrimp (about 75)