Ingredients: 300g corn flour, 4 pieces of duck egg yolk, 1 small bowl of elm.

Accessories: oil, salt, baking soda 3g, sugar.

Steps:

1. Add a proper amount of water to the corn flour, stir evenly with a shovel, cover with plastic wrap, and naturally ferment in a warm place for more than 4 hours.

2. The picked elm money must be carefully removed from impurities. This step is critical, otherwise it will be difficult to clean. Then soak in light salt water for 5 minutes, rinse repeatedly, and filter out the water.

3. Sprinkle some salt and marinate for 5 minutes.

4. 3g baking soda is melted with warm water and added to the fermented corn batter. Stir well and it smells sour.

5. Add the cleaned and filtered Ulmus pumila and stir well. If you feel dry, you can add some water.

6. Add duck egg yolk and mix well.

7. According to your favorite taste, you can add some sugar to make sweet cakes, or you can add some salt to make salty cakes.

8. Brush the baking tray with a thin layer of oil, pour in the batter, heat it up and down at medium temperature, and bake it on both sides.

9. Cut into pieces directly in the pot with a wooden shovel. It will be more beautiful if you cut it with a knife.