Place a bowl of cold water, with ice in your fridge.
Place roughly 10 tablespoons (1/2 cup + 2 tablespoons) of coconut oil in the fridge to harden.
Preheat your oven to 400ºF. Lightly grease a 9" round tart pan.
Combine all of the dry ingredients together (all except the coconut oil and water).
Next, add the coconut oil using a pastry cutter. If you don't have a pastry cutter, use a fork or your hands. I started with the pastry cutter and then found my hands worked best anyways. Continue to work the mixture until the mixture is a crumbly texture, it doesn't stick together but it is thicker than a flour texture.
Begin to add your ice-cold water. Start with 6 tablespoons and then add 1 tablespoon at a time after that. I needed way more water than I originally thought. The batter should hold form and be more on the sticky side than the dry side.
Divide the dough into two round shapes. One part for the bottom crust layer and one part for the top. My dough weighed 500g. So 300g was for the bottom and I kept 200g for the top. Place in the fridge for roughly 10 minutes.
Remove the dough from the fridge and start rolling out the base of your pot pie with a rolling pin. I used a piece of parchment paper and a pencil to draw out the desired circular size beforehand. Then I dusted the parchment paper and the rolling pin with brown rice flour and began to shape the base.
If the dough is crumbling as you are trying to roll it out, scoop it back up into the bowl, add 1 tablespoon of ice-cold water at a time, use your hands or a wooden spoon to incorporate until the dough is more on the sticky side. The dough may still be "touchy" but it shouldn't just crumble on you, it should hold together.
Once the base is rolled out to your desired size, place your pan upside down on the rolled out dough, then pick up the parchment paper from the underside, and carefully flip it over then the rolled out dough will land in the pan.
Using a fork, pork holes in the base (as seen in the picture above). Roll out the top crust next. Fill the base with the warmed filling.
Place the last piece of rolled out pastry on top. Using your fingers or a fork, press the crust down on the outer edges. Slice a few holes or slits in the top of the pie. Option, to brush a little bit of almond milk on top of the pie to help it get more of a golden brown look.