Chocolate Swiss roll

Chocolate Swiss roll 

Ingredients:

Eggs 4

Cocoa powder 10g

Corn oil 40g

Milk 50g

cake flour 45g

sugar 50g

Lemon juice or a little white vinegar

Sandwich cream:

Cream 180g

Cocoa powder 4g

Sugar 12g

Oven size: 28 * 28 cm

Preheat the oven at 160 degrees for 25 minutes