Surf and Turf Kebabs

Name: Surf and Turf Kebabs
Ingredients: 1 tablespoon unsalted butter; 1 shallot, finely diced; 1/4 cup granulated sugar; 4 small ripe peaches (about 1 pound), pitted and coarsely chopped; 1/4 cup peach preserves; 2 tablespoons Worcestershire sauce; 2 tablespoons white wine vinegar; Pinch of crushed red pepper flakes; 2 sprigs fresh thyme; Kosher salt and freshly ground black pepper; 2 ears corn, shucked and each cut into 8 wheels; 1 1/4 pounds beef sirloin, cut into 16 chunks (about 1 1/2-inch pieces); 16 large peeled and deveined shrimp (about 1 pound); Olive oil, for brushing; White rice, for serving; Green salad, for serving