1. Prepare purple sweet potato and pumpkin pasta.
2. Take the same amount of pumpkin and purple potato noodles, knead the dough into an oval shape, and stack one piece.
3. Roll up from one side.
4. Cut the buns into cubes.
5. Press it sideways with your hand.
6. It's like pinching a piece in the middle.
7. The pinched part faces the bottom surface. Turn it into a round bun shape. Leave it in a warm place for the second fermentation for 15 minutes.
8. Boil water in a pot, steam on high heat for 15 minutes, and let it out for 3 minutes. The two-color buns are ready.
