I following the recipe exactly, the only thing I changed was I bought milk chocolate chips instead of semi sweet chips. The first batch was raw in the middle and burnt on the outside. The second batch I flattened the dough before cooking and baked 2 minutes less than the first. Hard as a rock and still a little burnt on the bottom but not raw in the middle. The third batch I again flattened the dough before cooking and baked for an additional less minute so -3 from the first batch. Still hard as a rock but not burnt on the bottom or raw in the middle. I covered the rest of the dough and called it a night. I told my daughter we would stick to buying cookies at the bakery. Any help?
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