Mix all dry ingredients together into a bowl, then add coconut oil and mix until a sandy consistency is formed.
Scramble egg and egg it to the dough along with water until you get a wet sand type of dough that you can knead into a ball. Add water as needed.
Knead dough into a ball and flatten into a block. Cut into 4-5 chunks.
Push dough into tart pans until a thin layer coats the entire pan. Repeat until 5 pans are filled.
Bake for 12-15 minutes at 350F to par-cook. Then fill and cook for an additional 20-30 minutes. Depending on food, you may have to par-cook for longer.