Preheat your oven to 350 degrees F
In a bowl mix together the dry ingredients: flour, cornstarch, baking soda, and salt. Set aside
In another bowl with an electric mixer cream together the butter, sugar, and brown sugar until smooth
Add the egg and vanilla extract and mix until smooth
Add in the dry ingredients and mix until just combined. You don’t want to over-mix
Stir the chocolate chips in by hand and put into the refrigerator to chill for about 15 minutes
Using a large spoon or ice cream scoop, scoop out 12 even balls of the dough, flattening the top slightly with your hand
Put them into the oven and let them bake for 10-11 minutes. When you take them out they will seem slightly undercooked but they’re not
Let them cool completely and once cooled put them into the freezer for 10-15 minutes to ensure they are chilled
Once chilled take a cookie, add a generous scoop of ice cream on the bottom side, top with another cooking and press it down
Roll the edges of the ice cream into the sprinkles and either serve immediately or place back into the freezer until it is time to eat
That’s it! The perfect Summer dessert for all ages. Happy 4th of July!