In a mixing bowl, sift the flour, baking soda, salt, cornstarch, and cinnamon. Set aside.
2 3/4 cup All-purpose flour, 1 tsp Baking soda, 1 tsp Salt, 1 tsp Cornstarch, 1 1/2 tsp Ground cinnamon
Using a mixer, beat the butter, brown sugar, and sugar. Beat on high for 2 minutes. Scrape the bowl and add in vanilla and eggs. Mix on medium-high for 1 minutes. It will be very fluffy in texture.
1 cup Brown sugar, 1/2 cup White granulated sugar, 1 tsp Pure vanilla extract, 2 Large eggs
Add in the dry ingredients. Mix on low until just combined.
Chill for 30 minutes. Then, use a large cookie scoop to scoop the cookie dough. While cookie dough is still in the scoop, stick your thumb 2/3rds down to make a big hole. Fill with chocolate. Cover the hole with the cookie dough that was pushed to the sides and take it out of the scoop.
8 oz Semi-sweet chocolate bars
Mix together sugar and cinnamon. Roll the cookie balls into the cinnamon sugar. Chill for another 30 minutes.
1/2 cup White granulated sugar, 1 TBSP Ground cinnamon
Preheat oven to 350°F. Bake 6 cookies at a time for 13-15 minutes. The cookies are done when the edges are slightly golden. The middle will be slightly under done.
Let the cookies sit on the hot pan for 5 minutes. Then, rub each warm cookie in the cinnamon sugar. Cool on a wire rack.