In large bowl, beat together butter with brown sugar and white sugar until well combined, about 1 minute.

Add in egg and vanilla and beat until combined.

Add flour, cake flour, salt, and baking soda, and beat until combined.

Fold in mini chocolate chips.

Refrigerate for 1 hour.

After 1 hour, preheat oven to 350 degrees F.

Scoop ~ ½ teaspoon cookie dough balls onto baking sheet lined with parchment paper.

Lightly press down, flattening each cookie slightly.

Bake in preheated oven 5-6 minutes, until golden brown on the edges.

Let cool on baking sheet for 5 minutes then transfer to cooling rack.

Enjoy by the handful!