Add the all-purpose flour, cake flour, cocoa powder, baking soda, cornstarch & salt to a bowl and stir to evenly distribute all the ingredients. Set aside.
Add the granulated sugar, brown sugar and melted butter to a mixing bowl and mix with a spatula until smooth.Do not use a whisk. This will incorporate air and make the cookies cakey.
120 grams granulated sugar, 120 grams dark brown sugar, 140 grams unsalted butter
Add the vanilla extract and the egg and mix again until the sugar is dissolved. A little undissolved sugar is fine but try to dissolve the sugar as much as possible at this point. This will give the cookies a crackly top.To test, you can press the batter into the bowl using the spatula or rub a little of the batter between your fingertips - it should be smooth, not gritty.
2 teaspoon vanilla extract, 1 large eggs
Add the dry ingredients from earlier and fold into the sugar/egg mixture just until there are no more dry spots.
Chill the cookie dough in the refrigerator for 5-10 minutes. For a thicker cookie chill the cookie dough for a minimum of 20 minutes.
Scoop the cookie dough onto a baking sheet lined with parchment paper. Allow for at least 2 inches of space around each cookie to account for spreading.
Bake cookies for 9 minutes at 400°F on the middle rack of your oven. If you prefer a softer, more fudgy center, bake for 8-8½ minutes.
Allow to cool on baking tray/cookie sheet at least slightly before serving. Enjoy plain or dust lightly with confectioner’s/icing sugar!
confectioner's sugar for dusting
Store in an airtight container and serve within 5 days for optimal taste and texture!
For best results use a kitchen scale and measure in grams (or ounces). Grams are more precise and allow for consistently replicable results! Although alternative measurements (in cups) for dry ingredients are provided, please note that these are only estimates as this can differ from person to person.
Use room temperature ingredients except for butter which should be hot.
Set a timer! Even an extra minute can a make a difference in desired doneness