If have a jar of mayo that's nearly empty, but don't be so quick to toss it. Add some olive oil and spices, give it a shake, and you've just created your own homemade salad dressing.
Picture: Lynn Gardner/Flickr
This method comes from Epicurious, and the possibilities abound. Add lemon juice, olive oil and chopped herbs to make creamy lemon salad dressing. Or make a chilli-lime salad dressing with olive oil, Tabasco sauce and lime juice. Here are the incredibly simple instructions:
1. Twist the cap off the bottle. 2. Pour oil, vinegar, or other saucy ingredients into the bottle. 3. Replace cap (firmly). 4. Shake. How much oil/vinegar/juice you add will depend on how much mayo/ketchup/mustard is in the bottle; a good rule of thumb is to make your mixture about 1/3 acid. Go ahead and eyeball this, and add non-acidic ingredients to taste. You can always fix a dressing later by adding a little more oil, or even some water to thin it out.
Be sure to check out the full post, because there are options for mustard and ketchup too. It's a simple way to enjoy something homemade and use everything up in the process.