Combine dry ingredients in a jar or bottle with a tight fitting cover.
Add vinegar, lemon juice, and oil. Shake vigorously.
For variety, add 2 tablespoons (30 mL) finely chopped onion, 1/4 cup (50 mL) shredded cheddar cheese, OR 1/4 cup (50 mL) crumbled Roquefort or blue cheese.