Place 3 slices bacon in a large skillet over medium heat. Fry bacon until crisp.
Remove the bacon and place on a paper towel lined plate, and then crumble it. Leave the drippings in the pan.
To the bacon drippings, add ½ cup vinegar, ⅓ cup water, 3 tablespoons sugar, 1 teaspoon salt, and ⅛ teaspoon pepper. Bring to a boil over medium heat, whisking gently to combine.
Pour the hot dressing over your salad greens of choice (spinach, romaine, green leaf lettuce, endive, escarole, etc.). Add the crumbled bacon and toss to coat. Serve right away.
Notes
Keep any leftover dressing in the fridge. You can heat it up in a saucepan for salad another day. Ideas for salad additions: croutons, pecans, walnuts, hard boiled eggs, sliced yellow or red onion, sliced green onions, sliced mushrooms, grape tomatoes, sliced radishes, chopped dates, shaved parmesan, cheese: feta, blue, or goat's milk