Preheat your oven to 375°F (190°C).
Line a large baking sheet with parchment paper or a silicone mat.
melt the butter in the pan until it's nice and golden brown color, we called it Brown butter, then let it cool a bit before mix in the other ingredients.
In a large bowl, mix melted butter, white sugar, and brown sugar together.
Add the room-temperature egg and mix until just combined.
Pour in your Coffee/Kahlua mixture/Vanilla Extract. Don't worry if it looks a little "separated" at first; it will come together once the flour is added.
Mix in Dry Ingredients
Slowly add the All-Purpose Flour, baking soda, and salt.
Mix until just combined. Do not overmix, or the cookies will be tough!
Gently fold in your Dark or Semi-Sweet Chocolate Chips
put the batter in the plastic wrap and chill it in the freezer at least 1 hour before you bake it, the longer in the freezer, the better flavor it will be. I usually leave my batter at least 3 days before baking it.
One you are ready, Scoop the batter into your desired size, Scoop rounded tablespoons of dough onto your prepared baking sheet, leaving some space between them. For this recipe, you can make around 6-8 medium size cookies
Bake for 10–12 minutes.
The Secret for Perfect Texture: After baking for 10 minutes, Use a spatula to gently press down on the top of each cookie. Return them to the oven for a final 1–2 minutes. This ensures they bake evenly—creating a beautifully set, golden edge while keeping the center soft, rich, and perfectly "fudgy."
Let the cookies rest on the baking sheet for 5 minutes before moving them to a wire rack to cool completely.