The phrase "to make the vinaigrette" means to prepare a sauce or dressing that includes vinegar, oil, and other seasonings for salads or other dishes. Full definition
Make the vinaigrette by whisking together the mustard and maple syrup in the bottom of a large bowl. (becauseilikechocolate.com)
You can learn about how to make a vinaigrette with no recipe here. (frommetovuu.com)
The primary rule of thumb when making a vinaigrette recipe is to use two times as much oil as vinegar for your base. (sweetpotatoesandsocialchange.com)