This is the MOST DELICIOUS BREAKFAST I have ever eaten! Make this when you have potatoes!

Ingredients:
- 500g plain flour
- 5g salt (1 tsp)
- 10g sugar (2 tsp)
- 8g yeast (1 1/2 tsp)
- 50g vegetable oil
- 300ml milk
- 30g vegetable oil
- 1 onion
- 2 potatoes
- 5g salt (1 tsp)
- 50g ketchup
- Black pepper
- 1 egg yolk
- 5g milk
- White sesame