1To marinate: Place pork chops in a large sealable plastic bag. Whisk soy sauce, sherry, garlic, brown sugar and crushed red pepper in a small bowl. Add the marinade to the bag, seal and turn to coat. Marinate in the refrigerator for at least 2 hours or overnight.
2To prepare relish: About 20 minutes before grilling the pork, combine blueberries, shallot, chile, cilantro, lime juice, ginger and salt in a small bowl.
3Preheat grill to high. Remove the pork chops from the marinade (discard marinade). Grill the chops 3 to 5 minutes per side. Let them rest for 5 minutes before serving with the relish.
Make Ahead Tip: Marinate the pork (Step 1) for up to 1 day.
Ingredient Note: The “cooking sherry” sold in many supermarkets can be surprisingly high in sodium. We prefer dry sherry, sold with other fortified wines in your wine or liquor store.
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.