Brownies made in a mini bar pan.
To toast the small amount of walnuts quickly, use the saucepan you'll be using for the brownie batter. Heat it over medium high, add the walnuts to the dry pan, and toast in the dry pan, moving the walnuts around with a wooden spoon to keep them from burning. When nuts appear shiny, remove them from the saucepan to cool. They nuts will toast faster if you chop them first.
For the pan, I used the Calphalon Classic Nonstick Bakeware 12-c. Dessert Bar Pan.