Gluten Free Cinnamon Streusel Coffee Cake I made this last night with several tweaks and it is DELISH! I am dairy free as well as gluten free, so besides substituting oil for the butter, here's what I did: To the basic batter I added 1 can of canned apple pie filling and used apple cider in place of the milk or water. I added chopped pecans to the streusel, pressing the mixture into the batter slightly, and lastly I made a glaze of apple cider/powdered sugar/cinnamon to drizzle on top after the cake had cooled. I had to bake it an extra 15 minutes or so than what is called for, but it's really, really moist and delicious!