First of all, preheat your oven to 375 degrees. In a small to medium-sized mixing bowl, combine all the filling ingredients until it forms a crumbly, but well blended mixture (hint: it helps to soften the canna butter first). Next, spread half of this mixture over the bottom of a 9" x 9" pan, or closest size you have. Now, in a large mixing bowl, combine the cannabis flour, sugar, baking powder and salt and mix together thoroughly. Slowly begin to add in more softened canna butter a little at a time until well blended and subsequently mix in the milk. Spread some canna flour on a cutting board or similar surface and roll into a 1/4" thick rectangle. With the other half of your filling, spread it on top of the rolled rectangle of dough. Next, roll the rectangle up into a log and slice into 18 equal segments or 12 if you prefer bigger rolls. Bake for 25 - 30 minutes on 375 degrees Fahrenheit. While this is baking, combine the canna milk (or regular milk) and powdered sugar in a bowl and spread on top of the rolls once out of the oven. Let cool a minute or two and prepare to get really really medicated.