Preheat the oven to 180C/350F.
In a small bowl, mix the cinnamon butter mixture together.
In a large bowl, add all of the dry ingredients together and combine with a whisk.
In another large bowl, add all of the wet ingredients and combine with a whisk.
Pour the wet ingredients into the dry ingredients and mix with a silicone spatula. The dough will be pretty sticky.Add the boiling water a little at a time and continue to mix until the dough has absorbed all of the water.Let sit for 5 minutes.
Separate the dough into 2 as it's easier to handle.
Place the dough over a parchment paper, form a ball with your hands and cover with another piece of parchment paper.Roll out the dough to desired thickness. I rolled it out to about 0.5cm/0.2in thick, but you can roll it to be thicker. I don't advise rolling it thinner than 0.5cm/0.2in as it could break apart.
Once you have rolled out the dough, peel off the top parchment paper. With a spoon, or food brush, spread half of the cinnamon butter mixture all over equally.
Once it's completely spread, carefully roll up the dough so that it makes a huge log. Cut into desired thickness. Mine were about 5cm/2in thick.
Add a piece of parchment paper over a baking dish so that the bottom of the cinnamon rolls don't stick. Add the cut cinnamon rolls to the dish, and repeat with the other half of the dough.
Cover the baking dish with aluminum foil and baking in the oven for 70 minutes.
Take the cinnamon rolls out of the oven and let cool for 5-10 minutes.