Nothing beats homemade mayonnaise on a sandwich; simple ingredients make this a cinch to prepare.
For about 1 1/2 cups, you'll need:
+ 1 egg (check the expiration date!)
+ vegetable or canola oil, 1 1/4 cups
+ white wine vinegar (apple cider vinegar works, too), 1 splash
In a food processor, blend the egg together with the vinegar. With the processor running (keep only the spout open, to prevent a mess!), slowly drizzle in the oil until the mixture is creamy and white. Fold in S&P to taste.