Brownies to puzzle by

Apologies off the bat. I don't know the original source of this recipe for sure although I strongly suspect is the Baker's chocolate recipe with the simple addition of another egg. My mother brought it home from her job as a special education teacher about 30-35 years ago. It has been in the family ever since. Who is Carol for whom these brownies are named? I haven't the foggiest idea, perhaps a teacher at the school, but what I do know is that these brownies get devoured quickly. My mother was known to undercook them to the point that on one or two occasions they could be eaten with a spoon. Do that at your own risk with undercooked eggs. They are fudgy and rich, just as a brownie should be. They are a simple recipe, made in a one pot, so a minimum of mess is required. They freeze beautifully as well. I do advise taking a break and eating them away from your puzzle so not to distribute puzzle crumbs on your work in progress.

As for works in progress, these puzzles go very nicely with any of the site's Food and Drink Puzzles. Follow the link to see what is currently available.

The puzzle is given here as typed by my mother. 

Carol's Brownies

Melt: 4 squares unsweetened chocolate
         2 sticks of unsalted butter or margarine

Off the heat, add 1 teaspoon vanilla and a pinch of salt

Then add  2 cups of sugar (one cup at a time), 4 eggs (one beaten egg at a time), 1 cup flour and 1 cup chopped nuts or chocolate chips.

Bake 35 minutes or until a toothpick comes out clean in a greased and floured 9 x 11 inch pan.

Hints: If you cover the brownies lightly with foil, they will have a softer texture. If you use a Teflon or glass pan, bake at 325 degrees. If you use a metal pan, bake at 350 degrees.
           

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