Preheat oven to 200 Celsius degrees (390 Fahrenheit) and prepare your pie dish.
Start making the crust: mix all dry ingredients in one bowl and all the wet ingredients in another bowl.
Carefully add mix wet ingredients to the bowl with mix dry ingredients. You may want to use your hands to make a dough that is fairly firm and doesn't crumble easily. Create a ball and wrap it in a cling foil. Let it chill in a fridge for at least 30 minutes.
Now start making the filling: mix cornstarch in water until it dissolves.
In a pot, add pitted cherries, maple syrup, and vanilla extract, if using. Bring to boil and let it boil for 5 minutes.
Reduce the heat and now add dissolved cornstarch. Carefully mix it and bring it to boil once again. Boil it for approximately 2 minutes and then take the pot off the heat. Set it aside to cool.
Prepare the crust. Roll the dough with a rolling pin (you may use two sheets of parchment paper as it's easier to roll the dough in between them). Don't make it too thin. You should use about 2/3 of dough for the bottom crust.
Transfer the dough to the pie dish and create little pies. Fill them with your prepared filling.
Now roll the remaining 1/3 of the dough and make your desired shapes and top with them the pies.
Bake your mini cherry pies for about 15 minutes, then reduce the heat a little bit and finish up the baking in about the next 10 minutes.