Prepare a pumpkin of your choice. I got a Jack-o'-lantern, but you can choose a butternut squash, a kabocha, or any edible pumpkin.
Cut the pumpkin and remove the seeds. Try to leave the fiber around the seeds, as they add flavors and sweetness. You can also peel the skin if you like.
Cut the pumpkin into pieces and add 2.2 pounds or 1 kg into the pot. Add 1 cup of milk and bring it to a boil.
Once it starts to boil, let it simmer for 20 minutes with a lid on. Then, using a blender, make a puree.
Once it is made into a puree, add salt and sugar. Mix well. Then sprinkle 1/4 cup of glutinous rice flour and mix again.
Let it simmer for another 10 minutes. Add more sugar or salt to your taste. You can also add more glutinous rice flour if you want to thicken your soup.
Optionally, you can garnish it with some pumpkin seeds on top before serving. Enjoy!