Preheat the oven to 350°F/180°C and line a cookie sheet with parchment paper.
Combine flour, baking soda, baking powder, and salt in a small bowl and whisk. Set this flour mixture aside.
In a large mixing bowl, cream the softened butter, the sugars, and the orange zest until light and fluffy.
Next, beat the egg and vanilla into the sugar mixture until combined.
Incorporate the dry ingredients into the wet ingredients and stir them using a rubber spatula or wooden spoon until mainly combined, leaving a few streaks of flour. Mix in the chocolate chips.
Use a cookie scoop or tablespoon to make around one and a half tablespoons of dough per cookie. Roll the dough into balls and place them on the prepared baking sheet, spaced at least two inches/5 cm apart.
Bake for 10-12 minutes until lightly golden brown but still soft. The bake time will depend on your oven. For chewier cookies, don't over-bake them.
