2 bottles beer
2 cans frozen lemonade concentrate
1 fifth whiskey
1 scoop ice

We always use equal parts beer, whiskey, and frozen lemonade. Thaw and pour the lemonade concentrate into a pitcher, then fill up the cans with the whiskey and mix into the pitcher. Gently fill the cans with the beer, avoiding too much foam, and mix into the pitcher. Add the ice and stir.