1. the oven to 350 F. 2. the butter for about 40 seconds. Butter should be but shouldn't be hot. 3. In a large bowl, butter with the sugars until well-combined. 4. in vanilla and egg until incorporated. 5. the flour, baking soda, and salt. 6. dough until just combined. Dough should be and a little but sticky. 7. in chocolate chips. 8. out 1.5 tablespoons of dough (medium cookie scoop) and place 2 inches apart on baking sheet. 9. <1ins>Bake for 7-10 minutes, or until cookies are set. They will be puffy and still look a little in the middle.