Grilled Grapefruit-Marinated Shrimp - cooking recipe

Ingredients

12 jumbo shrimp, cleaned and split lengthwise
3 whole grapefruits
1/2 cup olive oil
3/4 cup cilantro, chopped
3 jalapeno peppers, chopped with seeds
6 scallions, chopped
1 cup extra-dry vermouth
salt and pepper

Preparation

Submerge the zests of the grapefruit in olive oil and heat up to 160 degrees for five minutes.
Put oil and remaining ingredients in a shallow glass dish and submerge shrimp in it. Cover with plastic and refrigerate. Marinate shrimp for at least 3 hours so flavors can penetrate. Remove shrimp from marinade and place on a paper towel before grilling.
Grill for 1 1/2 minutes on each side over hot coals.
Season with salt and pepper if desired.