Preheat oven to 180 degrees. Keep a baking pan with parchment paper ready.

Whisk the flour, baking powder and salt in a bowl and set aside.

Beat butter along with the sugars till fluffy and creamy.

Beat the vanilla extract in. Add in the egg and beat no more than a minute, just to mix in.

Sift in the dry ingredients in three batches, beating after each addition till all mixed well.

Fold in the chocolate chips.

Scoop out a portion of the batter with a tablespoon and drop onto the sheet. Keep 2 inch spacing between each. Sprinkle a little sea salt over.

Bake for 12 minutes, rotating the tray after 6 minutes. (I baked in two batches)

Cool on a wire rack before storing in an air tight container.