My mother made traditional mandelbrot with almonds. They were hard as rocks but great to dip in a hot drink. I’ve always been curious about the relationship between biscotti and mandelbrot because of the unmistakable similarities. I thought it was because the Jewish cookies were usually made with oil so as to be pareve, but these have butter, so maybe there is less difference than I thought. Anyway your recipe does sound delicious and perfect for Thanksgiving!