I learned this trick from a baker! The whole family is surprised!

I learned this trick from a baker! The whole family is surprised!
Ingredients:
eggs: 2 pc
sugar: 6 g (0.2 oz)
salt: 4 g (0.1 oz)
baking powder: 10 g (0.4 oz)
dried yeast: 10 g (0.4 oz)
melted butter: 50 g (1.8 oz)
milk: 450 ml (15 fl oz)
flour: 800 g (28 oz)
ham: 200 g (7.1 oz)
cheddar: 200 g (7.1 oz)
eggs: 1 pc
sesame seeds: 10 g (0.4 oz)
mayonnaise: 150 g (5.3 oz)
sour cream: 150 g (5.3 oz)
scallions: 20 g (0.7 oz)
garlic: 5 g (0.2 oz)
cheese: 100 g (3.5 oz)
salt: 3 g (0.1 oz)
black pepper: 2 g (0.1 oz)
lemon juice: 10 ml (0.3 fl oz)
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