In his book “Bollywood Kitchen,” filmmaker Sri Rao offers a pureed butternut squash soup with flavors that are bold and vibrant, yet comforting. Our adaptation, like his, includes fresh ginger and warm spices to complement the natural sweetness of squash. But because butternut often has a one-note flavor, we include carrots for earthiness and depth. A spoonful of yogurt and a some spiced pumpkin seeds adds color and texture.