Delicate shallots lend a mild, oniony bite to sweet shrimp and oranges in these skewers that benefit from a liberal slathering of an apricot-Dijon vinaigrette.
Heat a grill or grill pan to medium-high. Clean and lightly oil hot grill. Stir together jam, vinegar, Dijon, and 1 teaspoon salt and 1/2 teaspoon pepper.
Thread some skewers with shrimp, others with oranges, and others with shallots. Season with salt and pepper.
Grill shrimp and orange skewers for 3 to 6 minutes and shallot skewers for 6 to 9 minutes, turning all skewers frequently and brushing generously with glaze.