Pineapple juice can be used with flour to make steamed buns.

The required materials are: flour, sugar, yeast, appropriate amount of pineapple juice, appropriate amount of spinach juice, plastic wrap, comb, and toothpick.

The specific steps are as follows:

1. First, pour an appropriate amount of yeast into the prepared flour. The amount of yeast can be a little more, which can reduce the proofing time. .

2. Then, pour an appropriate amount of sugar into the flour. The amount of sugar can be determined according to personal taste.

3. Next, you can use the prepared pineapple juice to knead the noodles. You can stir while adding the pineapple juice.

4. Mix the flour and pineapple juice in the container with your hands and knead it into a dough.

5. After kneading into a smooth dough, you can seal it in a container with plastic wrap and wait until it rises to the size of two doughs.

6. Repeat steps 1 and 2 again, pour the spinach juice into the flour and stir.

7. Next, mix the spinach juice and flour evenly with your hands and knead it into a dough.

8. After the dough is smooth, seal it in a container and wait until it doubles in size.

9. After the dough has risen, cut the dough mixed with pineapple juice into small pieces.

10. Then, use a rolling pin to roll the small portion into a pineapple shape.

11. Use a comb to press the pineapple pattern on the dough rolled into a pineapple shape through the plastic wrap.

12. Finally, you can use a toothpick to drill a small hole in the blank space on the dough.

13. Use the same method to roll the dough mixed with spinach juice into a cake shape.

14. Use a knife to cut the dough into a mountain-like shape, which can be used as the leaves of the pineapple.

15. Place the leaves on top of the pineapple, so that a complete pineapple is ready.

16. Place the prepared pineapple steamed buns in a pot and steam them over high heat for about 15 minutes.

17. After 15 minutes, the delicious and beautiful pineapple steamed buns are completed.