Bring the chef out of you with this grilled burger recipe. It is almost completely homemade - the buns come in already made, but you can make those from scratch as well.     Grilling burgers is perfect to have a good time with friends, family, coworkers, and for you to showcase your cooking skills with practicality. With this recipe, you will be making a special mayonnaise and a rustic tomato sauce from scratch, all very easy.    When it comes to the burger, you can opt to buy it pre-made from the market of your choice. However,...