My tips for making the perfect chocolate chip/chunk cookies:
1. Use room temperature ingredients and measure everything well.
2. Use an ice cream scoop to shape and measure out uniform amounts of dough.
3. Freeze (don't just chill for a little bit) your pre-scooped dough on sheet pans lined with parchment paper and stick it in the oven straight form the freezer.
4. Last, but certainly not least, if you like soft cookies store them in an airtight container with a slice of bread. The bread will dry out while the cookies get moist! It's awesome.
I love using chocolate chunks instead of chips. If you haven't' made cookies with chunks before, give it a try!