This easy coffee cake recipe is the best coffee cake recipe you'll have and perfect for Christmas morning breakfast . . . . it really is such an easy breakfast. Although it's great out of the oven (the top is crumbly and a bit crunchy) it's perfect the next day, too! The easy breakfast recipes that are also cake mix recipes are so good and this one is no exception. Great to add to your list of brunch recipes and brunch ideas.