Preheat your oven to 190°C (170°C fan). Line a large baking tray with parchment paper.
Slowly melt the butter in a pan until fully melted, then let it cool for a few minutes.
175 Grams Unsalted butter
In a large bowl, beat the cooled melted butter with the brown sugar and granulated sugar until fully combined.
225 Grams Light brown soft sugar, 100 Grams Granulated white sugar
Add the egg, egg yolk, and vanilla extract. Beat until the mixture is lighter in color, smooth, and slightly fluffy.
1 Teaspoon Vanilla extract, 1 medium Egg, 1 Egg yolk
Sift together the flour, bicarbonate of soda, and salt. Gradually add these dry ingredients to the wet mixture, beating until smooth and well combined.
275 Grams Plain flour, 1/2 Teaspoon Bicarbonate of soda, 1/2 Teaspoon Sea salt
Fold in the chocolate chips using a spatula or wooden spoon.
325 Grams Milk chocolate chips
Using a 5 cm cookie scoop or large spoon, portion the dough evenly onto the prepared trays. Aim for about 6 cookies per tray, leaving space between them.
Bake in the preheated oven for 12–13 minutes for soft, chewy cookies or up to 15 minutes if you prefer a slightly crispier edge with a soft center.
Let the cookies rest on the tray for 5 minutes after baking, then transfer to a wire rack to cool completely.
Continue scooping and baking with the remaining cookie dough until it’s all used up.
Notes
Tips and Tricks
Butter: Use unsalted butter for better control over salt in the recipe.
Sugars: Light brown sugar adds moisture and chewiness, while white sugar helps with crisp edges.
Eggs: Using an extra yolk makes the cookies chewier and richer.
Baking Time: Watch your cookies closely; ovens vary! Remove cookies when edges are golden, centers may look slightly underbaked—this keeps them chewy.
Storage: Store cooled cookies in an airtight container for up to 5 days or freeze for longer storage.