A savory croissant filled with chicken and piperade, a Basque-style sauce made with peppers, onions, and tomatoes, for a flavorful and satisfying bite. Storage Instructions: Freshly baked croissants will last for 1 to 2 days at normal room temperature. Store at normal room temperature to maintain flakiness. Maximum of 2 hours when exposed to air. Reheat it once only. Serving Instructions: Oven Toaster/Convection Oven: Pre-heat the oven at 200°C. Toast for 2-3 minutes.