Tropea IGP red onion sauce: a ready-to-use sauce prepared only with Italian tomato pulp, extra virgin olive oil, Tropea Calabria IGP red onion, basil and salt. Crispino's Tropea IGP red onion sauce is a novelty made with the excellent food products of the area. It's ideal to keep in the pantry and use when needed. Crispino puts recipes on the table that have their roots in the Calabrian gastronomic heritage, selected raw materials. No added sugars, and no tomato paste.