Melt 80g butter boil over medium low heat until it becomes deep yellow.
Pour the hot butter into 35g butter, sugar, brown sugar, and vanilla extract. Stir until sugar is melting.
Add in egg and mix well until the mixture is thickened. Let is sit for 10 mins (at the end, the sugar should be all melted )
Add the sifted flour, salt, baking soda. Mix well and don't over mix
Add in chocolate chunks. Mix well. Refrigerate for at least 30 minutes
Divide the cookie dough into 40g balls. Bake at 190°C/375°F for 10 minutes
Let cool for 30 minutes and enjoy
Video
Notes
Ingredients - Click to enlarge the imageIngredients information1 Brown sugar will make the cookie soft and chewy. It has the caramel flavor. But too much of it will make the cookie texture like a cake2 Granulated sugar will harden the cookies and provide the sweetness. But too much of it will make the cookies too hard3 Eggs have protein, which will improve the chewiness. If you add extra egg yolks, the cookie will become a cake texture.4 The butter is cooked to reduce the moisture and provide the nut flavor. It helps making a chewy cookies5 If butter is whipped instead. The cookies will turn into cake texture6 Chocolate controls the sweetness and texture. Too much, the cookies texture will be uneven. Not enough, then the cookie will be a cake texture.7 You replace some dark chocolate with nuts. Like 100g dark chocolate + 50g nut will be good tooTips and notes1 Don't over mix the mixture after flour is add or the gluten will be formed.2 Bake the cookie in high heat so that the outside is crispy but inside is still soft3 Don't flatten the cookie dough before baking. Let the cookie dough melt while baking so the cookie is guarantee soft.4 Measure well the the cookie dough so that it can all baked evenly(* if the dough weight 35g, the baking time is 9 min 15 seconds)5 It is better to use the high quality chocolate for baking6 It is not recommended to bake too much cookie on the same time or it will impact the baking time.