Roll out the dough on a lightly greased surface into a 20"~24" wide and 10" long rectangle. Spread the filling over the dough in a thin layer, leaving a 1" of both long edges uncovered. Roll up the dough from one long edge to the other, pinching it together to seal it.
Transfer the dough onto a parchment paper lined baking sheet, seam side down, and form into a circle, tucking one end inside the other. Pinch this seam together. It should be a circle of about 4" diameter.
Slice the dough from the outside edge ¾ of the way through, leaving the center intact. Repeat in 1½" increments all the way around the dough.
Turn the slices on their sides, pulling every other one to the inside of the circle. Cover with greased plastic wrap and let rise until puffy, about 45 minutes.
Preheat the oven to 350°F.
In a small bowl, whisk together almond milk and agave. When the dough has risen, brush it generously with the egg (free) wash and bake for 24~26 minutes or until golden brown and the center reads 190°F when measured with a digital thermometer. Remove from the oven and let cool on a rack.