Mix butter, sugar, and egg in a mixing bowl with a hand mixer until well combined.

Add vanilla, baking soda, salt and flour in batches. Mixing to combine.

Add chocolate chips and fold to combine by hand.

Refrigerate the dough while pre-heating the oven to 350 degrees F

After about 15 minutes, take the dough out and roll into balls and place onto baking tray. Brush hands with flour to prevent dough sticking.

Bake in a pre-heated oven at 350 degrees F for about 30 minutes.

Take the tray out of the oven and let it cool completely