Absolutely! Though developed as a non-dairy recipe, these Hanukkah doughnuts can definitely be made using regular milk and butter. The use of dairy products will not compromise the taste or structure of these tasty treats. In fact, the high-fat content of dairy butter can enhance the dough's richness and flavor, while the milk can help make it soft and tender. Keep in mind that using dairy products will render the sufganiyot unsuitable for eating after a meat meal, as dairy and meat are not consumed together. However, if dairy avoidance or Jewish dietary laws are not a concern for you, go ahead and use regular milk and butter.