Throw about 4 cups of blueberries in a bowl and sprinkle them with about 3/4 cups of sugar and 3 tsp. of corn starch. Stir these gently trying not to break the berries.
Grate the zest of one lemon and fold it in with the berries.
Line a pie pan with your favorite pie dough.
Pour the berries into the shell.
Leave overlapping dough around the edge.
Sorry about the lighting. Somehow I turned my camera to the wrong setting. Top the pie with a rolled out round of dough.
Roll the edges inward pressing down to seal.
Spread the top with melted butter.
Then sprinkle it with cinnamon sugar. Cut a hole in the middle to vent the steam.
Place it on a piece of parchment paper on a cookie sheet.
Bake it at 375 degrees until golden brown and the filling is oozing and bubbling over the sides. This can take up to an hour depending on your oven. You can tell by the smell when it is ready. Though it will smell good while baking, it will give off an overwhelming scent when it is ready.
Let it sit for a while to cool before cutting.
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