Citrus-Beer Punch
["6 lemons", "2 c. sugar", "2 c. water", "1 c. grapefruit juice, chilled", "2 (12 oz.) cans light beer, chilled", "cracked ice", "lemon slices (optional)"]
["Remove peel from the 6 lemons and set aside.", "Juice lemons. You should have about 2 cups juice.", "In a large saucepan, stir together sugar and water.", "Bring to boiling.", "Add reserved lemon peel.", "Remove from heat.", "Cover and let stand 5 minutes.", "Remove and discard peel.", "Add lemon juice and grapefruit juice to sugar mixture.", "Transfer to a 2 1/2 to 3-quart pitcher; cover and chill completely."]
["lemons", "sugar", "water", "grapefruit juice", "light beer", "cracked ice", "lemon slices"]