This wilted spinach salad needs only a few ingredients. Bacon and red onions add crunch and flavor, and the simple bacon grease dressing is a snap to fix. The warm dressing wilts the spinach leaves slightly when drizzled over the salad. Bits of finely chopped onion and the cooked bacon complete the salad, but if you want a more colorful salad, other ingredients may be added. Finely chopped apples, sliced fresh figs, sliced fresh strawberries, toasted chopped pecans or walnuts, or sliced radishes are just a few ideas. A garnish of chopped or sliced hard-boiled eggs is a popular addition as well. Or add shredded carrots to the salad. There are many ways you can tailor the salad and make it your own creation. The sugar gives the salad dressing its tangy, sweet-sour flavor. Feel free to cut back on the sugar, if desired.