Grilled Herb Shrimp

"Wow!  Just wow!! Amazing!! Wow!!"  These were several phases that I said aloud as soon as I tried these shrimp.  I couldn't believe how wonderful they tasted, it was literally heaven in my mouth.  The marinade was so simple and with my husband's wonderful grilling skills, we had one of the best meals of the summer!

Source:  Pink Parsley, adapted from Barefoot Contessa Parties!

Ingredients:

2 pounds shrimp (16-20 count), peeled and deveined, but tails left on
3 cloves garlic, minced
1 medium yellow onion, minced
1/4 cup minced fresh parsley
1/4 cup minced fresh basil
1 teaspoon dry mustard
2 teaspoons Dijon mustard
1 1/2 teaspoons kosher salt
1/2 teaspoon fresh black pepper
pinch of red pepper flakes
1/4 cup olive oil
1 lemon, juiced
1/2 teaspoon sugar

Directions:

Combine all the ingredients and toss to coat the shrimp. Allow to marinate at room temperature for 1 hour, or in the refrigerator for up to 24 hours.

Prepare grill. Thread the shrimp on skewers, and sprinkle one side with sugar.

Grill the shrimp, sugared side down, for about 2 minutes, then flip skewers and grill until cooked through, an additional 1-2 minutes.