Red Sliced Jalapeños LA COSTENA (Rajas Rojas) 199 g. These jalapeño chilies are allowed to ripen longer and are then cut into strips, giving them a slightly sweet flavour. The Rajas Rojas are meaty and cooked until firm to the bite in a marinade of vinegar and vegetable oil. Heat level approximately 5. Ideal in a bread roll with lettuce, slices of sausage and cheese for a quick spicy snack.