- 1 large egg at room temperature
- 1/2 cup unsweetened dark cocoa powder like Hershey's Special Dark (regular cocoa powder or Dutch-
   processed may be substituted, but have a slightly different taste)
- 3/4 teaspoon baking soda
- 1/2 cup unsalted butter at room temperature
- 1 teaspoon pure vanilla extract
- 1 teaspoon cornstarch
- 3/4 cup brown sugar light or dark brown sugar
- 1 and ½ cup all-purpose flour
- 1/8 teaspoon salt optional


  • In the 
  • Add egg and 
  • Scrape down the sides of the 
  • Cover and refrigerate the dough at least one hour.
  • Preheat oven to 350° F.
  • Scoop cookie dough onto a room temperature 
  • Bake for 8 to 9 minutes or until the edges have set and the tops are just beginning to set. They will turn from being 'shiny' to be more 'matte'. They will firm up as they cool so be careful not to overcook them.
  • Remove the cookies from the oven and allow to rest on the 
  • Storage tips above.
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