Forget everything I said about saturated and trans fats. Apparently, all I had to do to make the ultimate parve brownies was to reduce the baking time to 20 minutes. I used 1/2 cup of canola oil (as opposed to 1/2 cup + 2 tbs butter or margarine — the standard conversion), and the brownies came out great. When they’re done, the a toothpick inserted into the center should be moist and a little bit fudgy at the bottom.

I’m adjusting the recipe.