1. Add flour, cooked pumpkin puree, sugar, yeast, water, and knead the dough in a bowl
2. Seal with plastic wrap and ferment to double size
3. Divide the dough into 4 small balls
4. Use small scissors to evenly cut out thorns on the surface of the dough
5. Steam on high heat for 20 minutes, then turn off the heat and simmer for 3-5 minutes
