Sweet Potato Hummus

Name: Sweet Potato Hummus
Ingredients: 1 large sweet potato (about 1½ pounds), peeled, cut into large pieces (about 3 cups); 2 garlic cloves, smashed; Olive oil (for drizzling); 3 tablespoons pure tahini or tahini butter; 1½ teaspoons kosher salt, plus more; 1 lime, halved