The eighth recipe I made from the Yeast-Risen Breads section of The Modern Baker by Nick Malgieri, was the one for Chocolate Babka Loaf, on pages 100-101. (We are not publishing recipes from the book, so if you like what you see, buy the book and bake along with or without us).
I made half a recipe, so this would be a much larger bundt if using the whole recipe amount. The taste was apparently worthy of praise, you will need to take my taste tester's word for that on all things chocolate, she dropped by to return a book, just in time for a sample. Fun and easy to make, and definitely a repeat for a special treat.