I assume everyone has eaten a chocolate chip cookie in their life: traditional chocolate chip cookies, but have you ever had sourdough chocolate chip cookies?
Cream together the softened butter and sugars. Mix in the egg until slightly incorporated. Add in the sourdough discard and vanilla. Combine.
Add in the flour, salt, and baking soda. Mix together until combined. Add in the chocolate chips and feel free to add more if you prefer more chocolate chips in your cookies.
Place dough in fridge for 15 minutes to rest.
Preheat oven to 350F and roll 3 tablespoons of dough into a ball and place on the baking sheet. Bake for 10 minutes for a chewier cookie and 12 minutes for a cake-like cookie.