Preheat oven to 350 degrees
Spray your springform pan and set aside
Using a standing mixer, cream together the butter and sugar until light and fluffy
Beat in the egg, egg yolk and vanilla until combined
In a medium bowl, using a whisk, mix together the flour, salt, baking powder, baking soda and cornstarch together.
Gradually mix in the dry ingredients with the wet ingredients
Once the dough has forms, mix in the candy and sprinkles
Using a rubber spatula press the dough into the springform pan
Bake in the oven for 20-25 minutes or until the pie is lightly brown on top.
Let the pie completely cool