I tried making this once in Colorado and it was a huge failure. I had substitute cornstarch for potato starch, so I'm not sure if that was the issue or the altitude
Instructions
Preheat oven to 350F
Cream sugar (2 cups) and butter. Add eggs and beat until light brown
Sift together cake meal, salt, and potato starch. Add to bowl with butter. Add chocolate chips and walnuts and mix well
Grease 2 cookie sheets and make two loaves on each cookie sheet
Mix together cinnamon and sugar (1/2 cup), and sprinkle generously on each loaf
Bake for 35 minutes. Slice while warm. Will freeze for several months