- 1 hour
- 11 minutes
Fill a dish with 2 cups of water. Add 5 drops of blue food coloring. Add a sliced white onion and allow it to soak for at least an hour. You can do this step the night before if you want a more intense blue color.
In a large pot, boil salted water and make the pasta according to package directions, until still firm but tender to the bite.
While the water is boiling, slice grape tomatoes in half.
Drain the pasta but reserve about ¼ cup of pasta water to add back in. Cool the pasta. Then, in a large bowl, add the pasta and the pasta water. Add the Italian dressing and mix. Then mix in the tomatoes, cheese and olives.
Once the onion has turned blue, drain the water and cut the onion sections into smaller strips or rings. Add the onions to the salad and fold them in.
- Add salt and pepper to taste.