Buttermilk makes the best baked goods. Combined with spices rich spices and the wonderful sweet flavor of real maple syrup, this healthful cake is a real fall spectacular or a lovely treat any time of year. I recommend grade B maple syrup - it has a stronger flavor, great for use in recipes like this one. Frosted or not, it's your call. Adapted from Maple Syrup Cookbook by Ken Haedrich.