Buying salad dressing at the store is unusually expensive, especially considering you can make better at home. You don't have to just settle for oil and vinegar. This simple graphic from KptnCook shows you how to make any salad dressing, from ingredients you have lying around, or from ones you'd love to use.
Whether you like creamy salad dressings or tangy vinaigrettes, the graphic has you covered. If you're going for something creamy like a homemade ranch or just a simple yogurt dressing, all you need is three parts of your base creamy ingredient (like yogurt, mayo, or sour cream), one part flavour (like fresh herbs, soy sauce, garlic, or whatever else you want in there), and one part liquid to smooth things out (lemon or lime juice, for example). Whisk it all together and you have a homemade ranch that's better than Hidden Valley.
If you prefer vinaigrettes, your ratios are the same, but the ingredients differ. Instead of creamy, you'll need fat — so three parts oil (olive or sesame, for example), one part flavour (herbs, roasted shallots, garlic, mustard, and so on), and one part acid (vinegar, lemon juice, and so on.) Whisk all that up and get your emulsification going, and you've got a great salad dressing that's as good as anything you'll spend money on in a restaurant.
Give making your own a try at home. My go-to dressing is usually seasoned rice vinegar, olive oil, mustard, garlic, salt, and pepper, and maybe a few herbs if I have any, but it's all stuff I have at home anyway. Once you get the hang of making your own, tasting it, and adjusting the flavours, you'll never buy salad dressing again.
The Ultimate Guide to Salad Dressings [KptnCook]