Grilled Spicy Citrus Ribs

Name: Grilled Spicy Citrus Ribs
Ingredients: 2 racks of ribs (about 4 pounds), St. Louis-cut spareribs or baby back ribs*; 2 1/2 cups spicy citrus brine; Oil for the grill grate; 1 cup spicy bourbon syrup; 1 1/4 cup freshly squeezed orange juice (about 3 oranges); 1/2 cup freshly squeezed lemon juice (about 2 lemons); 1/4 cup freshly squeezed lime juice (1-2 limes); 1/4 cup water; 2 Tbsp Kosher salt; 1 teaspoon dried thyme; 1 Tbsp crushed red pepper flakes; 1 cup bourbon whiskey; 1/2 cup brown sugar; 1/2 teaspoon crushed red pepper flakes; 2 teaspoons salt; 1 teaspoon black pepper; 2 Tbsp butter