Preheat oven to 400 degrees F and grease a cast iron skillet, 8-by-8 inch baking dish, or other similarly sized baking dish with coconut oil.
Whisk together the nut milk and apple cider vinegar in a medium bowl and set aside for 5 minutes.
1 cup unsweetened non-dairy milk, 1 tablespoon apple cider vinegar
Add the melted coconut oil and vanilla extract and whisk to combine.
6 tablespoons (75g) coconut oil, 2 teaspoons vanilla extract
In a separate mixing bowl, whisk together the almond flour, tapioca flour, coconut sugar, baking powder, baking soda, and salt.
3½ cups (336g) Bob's Red Mill blanched almond flour, 1 cup (113g) Bob's Red Mill tapioca flour, ¼ cup coconut sugar, 2 teaspoons Bob's Red Mill baking powder, ½ teaspoon Bob's Red Mill baking soda, 1 teaspoon kosher salt
Add the psyllium husks to the liquid (you don’t want to do this before or the liquid will become too thick), whisk it in, and immediately add to the dry ingredients.
¼ cup (20g) psyllium husks
Use a spatula or wooden spoon to mix everything together until a loose dough is formed. It will be relatively soft and a little bit sticky, but shouldn’t be overly sticky. If it is, add an extra tablespoon or two of tapioca flour.
Put down a sheet of parchment paper or plastic wrap and dust generously with tapioca flour. Place the dough on top.
Press into a large rectangle and then use a rolling pin to even it out into a rectangle about 12 inches by 8 inches and about 1/4 inch thick.
In a small bowl, stir together the ghee or vegan butter, chopped chocolate, and cinnamon if using, until fully combined. Use a small offset spatula to spread all over the dough.
¼ cup vegan butter, 4 oz. dark chocolate, ½ teaspoon
Use the plastic wrap or parchment paper to help roll up the dough lengthwise, keeping it as tightly rolled as possible.
Gently slice into 10 rolls, then add to oven and bake for 25 to 30 minutes or until golden brown.