2 1/3 c flour
2 tsp baking powder
1 3/4 tsp kosher salt
1/2 tsp baking soda
10 tbsp unsalted butter (softened)
2/3 c light brown sugar packed
1/3 c sugar
1 tbsp vanilla
1 egg
2 1/4 c chocolate chips
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Chill overnight. Bake at 400F x 10-15 min.