Mix all 4 ingredients. Reserve 1/2 of the sauce for serving.
Prepare a medium-hot fire in a grill. Thread the shrimp onto the skewers, leaving space between them. Brush the shrimp with olive oil.
Grill for 2 to 3 minutes. Brush on basting sauce, if needed. Turn the shrimp and grill another 2 to 3 minutes, until opaque.