Hawaii is known for its white sand beaches, tropical climate and fun water sports. But any food lover wil tell you that the real draw on Oahu is the fresh garlic shrimp, served at roadside shrimp trucks along the North Shore. Chef Jason Hill shows you how to make garlic shrimp scampi modeled after the famous shrimp shacks in Kahuku. At our favorite stop, Giovanni’s shrimp truck, in Kahuku, each plate includes 12 shrimp with two mounds of steamed sticky calrose rice and a lemon wedge. We hope …