Dissolve sugar and yeast in the warm water, use a small bowl for this.
Mix cornmeal, salt, anise seed, 1 cup flour and beer in a large bowl. Add the yeast mixture and mix.
Add sweet potato (or squash or pumpkin) and 2 cups of flour. Mix together to form a soft dough texture.
Cover with a towel and let the mixture rise in a warm place for around 2 hours. You can also let the mixture rise in the refrigerator for 4 to 12 hours if covered with film.