Sweet and Sour Grilled Shrimp

• 1/4 teaspoon red pepper flakes
• 1/4 cup brown sugar
• 1/4 cup rice wine vinegar
• 1/4 cup lime juice
• 1/2 cup canola oil
• 1 lime, zested
• 2 cloves garlic, smashed
• 1 tablespoon peeled and grated ginger
• 1/4 cup freshly chopped basil leaves
• Pinch salt
• 1 1/2 pounds large shrimp (16/20 per pound), peeled and deveined
• 2 limes, cut into wedges
• Gina's Chili Cocktail Sauce, for dipping, recipe follows

Gina's Chili Cocktail Sauce:

• 1 teaspoon sweet chili sauce
• 1 cup peach preserves
• 4 tablespoons hot Chinese mustard