Add the bacon grease, , minced garlic, vinegar, sugar and mustard to a saucepan over medium-low heat. Whisk constantly until the sugar has dissolved and the dressing slightly emulsifies. Season with the salt and pepper. Before serving, add in the crumbled bacon. You can keep this over low heat while stirring occasionally until ready to serve. I suggest reheating it in a saucepan like so. This is the combo I’ve come to love over the years, but you can experiment with different vinegars, more bacon fat and other spices too!