What are the three basic salad dressings?

1. Vinaigrette: This is the most basic and classic salad dressing. It's made with oil, vinegar, and seasonings. The ratio of oil to vinegar can be adjusted to taste, with a common starting point being 3 parts oil to 1 part vinegar.

2. Mayonnaise: This creamy dressing is made from oil, eggs, and lemon juice or vinegar. It's typically used on salads with heavier ingredients, such as chicken or potato salads.

3. Ranch: This creamy, tangy dressing is often made with mayonnaise, buttermilk, sour cream, herbs, and spices. It's a popular choice for salads with vegetables, chicken, or fish.

These are the three basic salad dressings, but many variations exist. You can find endless options in supermarkets and specialty stores, or you can create your own unique blend at home.