Let your ingredients come to room temperature before adding them. Using room temperature ingredients, like eggs and butter, ...

Food & Recipes Bake like a pro: Chocolate chip cookies made easy Chocolate chip cookies, invented by Ruth Graves Wakefield in 1938, are loved for their chewy texture and rich flavour.

I made common baking mistakes (on purpose!) to see how they would affect chocolate-chip cookies. As it turns out, there's a lot that can go wrong, like mistaking baking powder for baking soda.