Soak the Farro (Optional): If you're using pearled farro, you can skip the soak and jump straight to cooking. If using hulled farro, soak it in cold water for 12 hours or overnight to help it cook faster and evenly.
1½ cups pearled farro, ½ teaspoon salt
Cook the Farro: Drain the farro and place it in a medium pot with 4 cups of salted water and a whole garlic clove. Bring to a boil, then simmer for about 45 minutes, or until tender but still a little chewy. (Pearled farro may take only 25–30 minutes.) Drain well and discard the garlic.
4 cups water, 1 clove garlic
Season the Farro: While the farro is still warm, toss it with 3 tablespoons of olive oil, oregano, and a pinch of salt. Let it cool to room temperature in a large bowl.
4 tablespoons olive oil, ½ teaspoon dried oregano
Add the Tomatoes: Stir in the halved cherry tomatoes for a hit of freshness and color.
1½ cups cherry tomatoes
Mix in Cheese and Scallion: Add the diced pecorino and sliced scallion to the bowl. Give everything a good stir—you’re building layers of flavor here.
1¾ ounces Pecorino Toscano, 1 small scallion
Toss in the Olives and Basil: Add the pitted olives and some torn fresh basil leaves (as much or as little as you like). Drizzle with the remaining tablespoon of olive oil.
20 mixed black and green olives, Fresh basil leaves
Final Stir and Serve: Give the salad one last mix. Serve it chilled or at room temperature. Bonus points if you make it a day ahead—the flavors only get better.