Neiman Marcus Chocolate Chip Cookies

This is one of the great urban myth recipes—supposedly, years ago, a woman dining at Neiman Marcus asked for their cookie recipe, was told it would cost $2.50, and was later shocked to find a $250 charge on her credit card. For revenge, she shared the recipe with as many people as possible.

ingredients

2 cups old-fashioned rolled oats
2 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1 cup (2 sticks) unsalted butter, at room temperature
3/4 cup light brown sugar, packed
1/2 cup granulated sugar
2 tablespoons light corn syrup
2 large eggs
2 teaspoons vanilla extract
12 ounces semisweet chocolate chips, or 12 ounces top-quality bittersweet or semisweet chocolate, chopped into small chunks
3 1/2 to 4 ounces top-quality milk chocolate, finely chopped or coarsely grated
1 cup chopped walnuts or pecans, toasted (optional)