To make these Fried Nutella Dumplings gluten free, replace the croissant dough with a gluten-free pastry dough or gluten-free crescent-style dough if available. Also confirm that the Nutella or chocolate-hazelnut spread you use is labeled gluten free, since brand ingredients and manufacturing practices can vary. Because gluten-free dough can be more delicate, chill the filled dumplings well before frying so they hold their shape more easily. For anyone with celiac disease or severe gluten sensitivity, use clean oil, utensils, trays, paper, and frying equipment to avoid cross-contact.