Preheat the oven to 160 degrees C (325 degrees F).
Unsalted Butter (1/2 cup)
Caster Sugar (2/3 cup)
until slightly colored and fluffy.
In another bowl beat
Vanilla Essence (1 tsp)
Add the egg and vanilla mixture into the butter mixture. Mix well.
All-Purpose Flour (1 1/2 cups)
over the butter mixture and beat it until fully incorporated.
Chocolate Chips (1 cup)
and fold in.
Put the batter on a greased baking sheet 2 inches apart leaving space to increase in size while cooking.
Bake for 20 minutes
Let it cool on the tray for 5 to 10 minutes then move them to a wire rack to cool.