This Lemon-Butter Pasta Sauce Is So Good, I've Already Made It Twice in One Week

Gradually add 3 cups low-sodium vegetable or chicken broth, and 1 teaspoon kosher salt. Stir to combine. Bring to a simmer. Add 20 ounces refrigerated or frozen cheese tortellini. It will be mostly, but not fully, submerged in the sauce. Cook, stirring frequently to prevent the tortellini from sticking, until tender and warmed through, 5 to 6 minutes for refrigerated tortellini or 8 to 11 minutes for frozen tortellini.