Slightly smash garlic clove using flat side of a knife. Stir together garlic, broth, butter, and salt in a large saucepan; bring to a boil over high heat. Stir in rice; reduce heat to low, and cook, covered, 20 minutes or until broth mixture is absorbed and rice is tender.
Remove and discard garlic; stir in lemon rind and dill, using a fork.
