Let cool on a rack for 10 minutes. Cut into 24-squares.
These Brownies freeze well wrapped in plastic wrap.
Add the flour, vanilla, and salt and stir just until mixed together. Do not overbeat. Stir in the chocolate chips and nuts. Spread in the pan and bake 25 to 30 minutes.
-These brownies mix up quickly. I mixed the wet ingredients together and then added all of the dry ingredients (including the chocolate chips) at once. Unfortunately, I was using a 1 1/2 cup measure when I added the flour, instead of a 1 cup measure, so my brownies are a bit more cakey than usual. They were still delicious. If you are looking for a more cake-like brownie, use 1 1/2 cups and reduce the cooking time to 20 minutes. They are perfect for frosting!