Ranch Dressing

A normal thing of mayonaise is 30 ounces (3 cups), so just treble the recipe. I also will add a little bit extra of the 1/8t things. you can also use buttermilk instead of regular milk. experiment to see what you like.
Another variation that I liked was decrease the milk amount by 1/2 or 1/4 cup (haven't experimented with this enough, so i'm not sure which would be better), and add 1/2-3/4 cup sour cream (for 30 ounce portion) and 1/2 a cucumber, peeled. Like I said though, you might need to experiment with this one a little.