Make Ahead Tip: To make ahead: Prepare the shrimp through Step 2, cover with paper towels and refrigerate for several hours before cooking.
Chinkiang vinegar is a dark, slightly sweet rice vinegar with a smoky flavor available in many Asian specialty markets. Balsamic vinegar is an acceptable substitute.
Shrimp is usually sold by the number needed to make one pound. For example, “21-25 count” means there will be 21 to 25 shrimp in a pound. Size names, such as “large” or “extra large,” are not standardized, so to get the size you want, order by the count per pound. Both wild-caught and farm-raised shrimp can damage the surrounding ecosystems when not managed properly. Fortunately, it is possible to buy shrimp that have been raised or caught with sound environmental practices. Look for fresh or frozen shrimp certified by an independent agency, such as the Marine Stewardship Council. If you can't find certified shrimp, choose wild-caught shrimp from North America--it's more likely to be sustainably caught.
People with celiac disease or gluten-sensitivity should use soy sauces that are labeled "gluten-free," as soy sauce may contain wheat or other gluten-containing sweeteners and flavors.
2 1/2 lean meat, 1 fat