Step 1

Preheat oven to 180°C. Grease oven trays; line with baking paper.

Step 2

Beat butter, extract, sugars and egg in a small bowl with an electric mixer until light and fluffy. Transfer mixture to a large bowl; stir in sifted flour and soda, in two batches. Stir in chocolate.

Step 3

Roll tablespoons of mixture into balls; place 5cm apart on trays.

Step 4

Bake cookies 15 minutes or until golden; cool on trays.