Cooking Steps

1. 

   Step1:Two slices of toas

2. 

   Step2:Whisk the egg white with white vinegar. Add sugar twice

3. 

   Step3:Spread the egg white on the toast. Make some sharp corners. It will look better. Put the yolk in the middle

4. 

   Step4:Oven 140 degrees. 15 minutes (no preheating allowed

5. 

   Step5:It's a little bit less beautiful to put it on the stove. It's all yellow. You can think of pulling a few corners

6. 

   Step6:It's open. It's egg white. It's crispy. It's delicious