This recipe is the result of lots of experimentation using different brands, ingredients, and amounts, probably over a hundred different batches of cookies over the course of 2 years using published recipes and own variations
Take eggs out of refrigerator at least 1 hour before starting
Brown 2 sticks of butter, then allow to cool to room temperature
Whisk together flour, baking soda, and salt in bowl
When cooled, cream the butter and the sugar at medium speed until it at least doubles in volume
While the butter and sugar are creaming, mix eggs, milk, and vanilla extract
After butter and sugar is at least doubled, decrease mixer speed and slowly add egg/vanilla mixture (scraping sides as necessary)
When wet ingredients are completely mixed, add dry ingredients in 3 small batches and mix slowly until fully combined (scraping sides as necessary)
Add chocolate chips (and walnuts) and mix slowly
Cool in refrigerator at least 30 minutes
Bake at 375 for 12-14 minutes depending on size of cookie, turning pan half way
Cool cookies on rack
Dough freezes well
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