I've made this soup several times and love how simply it comes together! Recipe borrowed directly from 101cookbooks.com. If you haven't been to this site, head on over! Haven't made anything less than completely delicious from Heidi Swanson...
Thai-spiced Pumpkin Soup Recipe
Keep in mind that different Thai curry pastes have differing strengths. Start with a teaspoon to start and then build from there until the soup has a level of spiciness and flavor that works for your palete. Top with toasted pumpkin seeds.
2 acorn squash, pumpkins, or other smallish winter squash
3 tablespoons unsalted butter, room temperature
1 14-ounce can coconut milk
1 teaspoon (or more) red Thai curry paste
2 teaspoons fine grain sea salt (or to taste)
Preheat the oven to 375 degrees and place the oven racks in the middle.
Carefully cut each squash/pumpkin into halves (or quarters). Slather each piece of squash with butter, sprinkle generously with salt, place on a baking sheet skin sides down, and place in the oven. Roast for about an hour or until the squash is tender throughout.
When the pumpkin/squash are cool enough to handle scoop it into a large pot over medium high heat. Add the coconut milk and curry paste and bring to a simmer. Remove from the heat and puree with a hand blender, you should have a very thick base at this point. Now add water a cup at a time pureeing between additions until the soup is the consistency you prefer - a light vegetable stock would work here as well. Bring up to a simmer again and add the salt (and more curry paste if you like, I used just shy of 6 teaspoons but the curry paste I use is not over-the-top spicy).