Pre-measure your ingredients. This keeps things organized and ensures everything blends just right.

Let the butter soften. Bring the 20g of butter to room temperature for a creamy texture that mixes beautifully with the sugars.

Cream the butter and sugars. In a small bowl, combine the soft butter with 15g of brown sugar and 10g of granulated sugar. Use a fork or spatula to beat until light and fluffy.

Mix in the cream and vanilla. Add 1 tablespoon of double cream and 1/4 teaspoon of vanilla extract. Blend until you have a silky mixture.

Sift in the dry ingredients. In the same bowl, add 40g of flour, 1/8 teaspoon of baking soda, and a pinch of salt. Stir gently until a dough begins to form.

Fold in the chocolate. Add 30g of chopped dark chocolate or chocolate chips, ensuring they’re evenly distributed.

Prep your oven. Preheat your oven to 350°F (175°C). Shape the dough into a ball and place it on parchment paper. Flatten it slightly to form a disc.

Bake. Pop it in the oven for 10-12 minutes until the edges turn golden brown. Enjoy the delectable aroma wafting through your home!

Cool and indulge. Allow the cookie to cool slightly on a wire rack, then savor that perfect crisp on the edges and soft chewy center.