Ingredients/formula is in previously posted blog.
Hmmm... I see my slight mistake. I seemed to have ignored my own rule - do not egg wash sliced edges of each roll. It sealed the layers and have kept them from rising during the baking period.
The taste of 'Euro-Style' Unsalted Butter is more flavorful than the normal Kirkland unsalted butter I always use.
This one below shows the layer separation and rise where egg wash is carefully applied only to the top of the rolled layer avoiding the sliced edges.