– 1 bottle of mild, light vinegar (I used white wine. It was the cheapest at Whole Foods.)
– 1 bunch opal or regular basil
– Pry inside plastic top off of vinegar bottle with a knife
– Place a handful of washed basil into the bottle. I used a chopstick to push it down through the neck.
– Let the mixture steep for 3 days
– Remove basil. Vinegar will be a rich purple color