Melt the unsalted butter and let it cool for 5-10 minutes.

Chop the chocolate into small pieces.

Mix the unsalted butter, light brown sugar, dark brown sugar, and salt until the sugar dissolves in the butter.

Add the egg and mix, then sift in the all-purpose flour and baking soda and mix until combined.

Do not overmix. Add the chocolate and mix. Cover with plastic wrap and refrigerate for at least 1 hour.

Use an ice cream scoop or spoon to form balls. Remember to leave space between each one. Bake in a preheated oven at 350°F (180°C) for 10-12 minutes.

The cookies will be very soft when they come out of the oven, so let them cool for 30 minutes before eating. Enjoy the joy of taste.
Video: https://youtu.be/1ZKOMVMddFI