Fresh Blueberry Pie

I love to pick my own blueberries and thankfully my kiddos do too. We pick several gallons so we can have plenty of fresh berries and also have some to freeze for later use. Right now I have a blueberry pie in the oven begging for some vanilla ice-cream..... Back to the recipe, this is a very good pie recipe in my opinion. This would make a great dessert for the 4th of July. This is What's Cookin on Beaty's Creek.

Needed:
4 cups of fresh blueberries( I always put a couple of green berries in my pies. I think it makes a difference.)
1 1/2 cups sugar
2 T butter
2 T Cornstarch
1 egg yolk mixed with a little cream
Pie crust

Mix berries with sugar and cornstarch and pour into your pie pan that is fitted with your bottom crust. Now dot the berries with the 2 T butter and cover with top crust. make sure you cut some air holes in the top crust, this will help the steam to escape. Brush an egg yolk mixed with a little cream over the top crust and sprinkle with sanding sugar. Bake on a parchment lined cookie sheet at 425' for 20 minutes, reduce oven to 350' and bake for 25-30 more minutes.