Preheat oven to 350F. In separate bowls, mix the wet and dry ingredients, withholding 1/3 cup of the chocolate chips for melting to drizzle on at the end. Add wet ingredients to dry, stirring until batter is evenly mixed – it will be thick and shapeable. Cover a baking sheet with parchment, then mold dough by hand into a log, and pat to flatten to about and inch high. Bake for 20-25 minutes (until center is firm), the remove from oven and cool for 10 minutes. Reduce oven to 300F.