For the couscous: In a medium saucepan, bring the chicken broth and salt to a boil over medium-high heat. Remove the pan from the heat and stir in the couscous. Cover until the liquid had been absorbed and the couscous is tender, 5 to 6 minutes. Using a fork, fluff the couscous and break up any lumps.
In a large, nonstick skillet heat 1/4 cup oil over medium heat. Add the garlic and cook until golden, 1 to 2 minutes. Remove the garlic and discard. Increase the heat to high and add the couscous. Cook, stirring constantly, for 6 minutes. Continue to cook the couscous, stirring every 5 minutes, until toasted, about 25 minutes. Transfer the couscous to a large serving bowl and cool for 5 minutes. Add the ricotta salata, cucumber, sun-dried tomatoes, Parmesan, and basil.
For the dressing: In a small bowl, whisk together the oil, lemon juice, lemon zest, salt, and pepper until smooth.
Pour the dressing over the salad and toss until the couscous is coated.
Recipe courtesy of Giada De Laurentiis