Belgian waffles are traditionally topped with a generous amount of butter and maple syrup, but you can use whatever kind of syrup you prefer. Since Belgian waffles often have a sweeter batter than traditional American waffles, they're an excellent backdrop for many different kinds of syrups. For example, if you want to make baked apple-topped Belgian waffles, then apple cider syrup might be good. On the other hand, traditional maple syrup adds wonderful flavor if you prefer to top your waffles with berries.