*Yes, you can use purple cauliflower as well, but the color of the soup will probably be brown instead of orange.
*Or sub in your favorite curry powder.
You can sub sweet potato, butternut squash, or any sweet fall squash for the pumpkin and acorn squash in the recipe.
Spider web: draw several concentric circles on the surface of the soup. Then, using a knife or a toothpick, drag the lines from the center out toward the edges to create a web design.