Preheat the oven to 350°F (175°C).
In a large mixing bowl, cream the softened butter and sugars.
1/2 cup softened butter, 1/4 cup soft brown sugar, 1/2 cup granulated sugar (I used unrefined)
Add the egg and vanilla extract and mix well.
1 egg, 1 tsp vanilla extract
Add the sourdough discard and the baking powder.
1/4 cup sourdough starter (discard or active), 1/2 tsp baking powder
Slowly incorporate the flour into the cookie dough. You will need to use your hands towards the end to make sure the dough is smooth.
2 1/2 cups all-purpose flour
The dough should be thick and soft when ready. Play-dough-like consistency.
Shape the dough into a bowl and weigh it on your kitchen scale.
My dough had 770g in total.
Now divide the dough into 14 equal pieces.
Mine weigh 55g each.
If you wish to make the cookies smaller, divide the dough into 18 equal pieces.
Prepare a cookie sheet with parchment paper and roll each cookie into a ball.
Once they are on the cookie sheet, gently press them down with your hands. Don't overdo it as you don't want flat cookies.
Place your thumb in the center of each cookie and gently press to create an indentation. The hole should not go all the way through. About halfway the cookie's thickness.
You can also use a measuring spoon to create the indentation. I actually prefer it as it looks better and more even.
Add the chocolate chips in the holes you created.
3/4 cups chocolate chips (milk or dark chocolate)
Bake the cookies at 350°F (175°C) for about 13 minutes.
Take the tray out and gently spread the chocolate if the chocolate hasn't melted.
Sprinkle the sea salt crystals on the cookies and put the cookie sheet back in the oven.
sea salt crystals (to sprinkle on the cookies)
Bake for another 2 minutes or until slightly golden.
Serve and enjoy!