This old-fashioned brownie recipe dates back to the early 1900s and is credited to Fannie Merritt Farmer, a pioneer in standardized measurements in American cookbooks. Featuring a rich chocolate flavor, a crinkly top, and crunchy walnuts, these brownies are a nostalgic bite into the past. This historic brownie recipe preserves the simplicity and charm of the original, making it perfect for those who want to experience the origins of this beloved dessert.