With a hand mixer beat the eggs and the sugar until doubles in size and gets white then add vanilla extract, vegetable oil,water,milk beat again

Sift flour +baking powder +salt then mix

Share the batter into two add to the second part cocoa powder and mix.

Lightly grease your donut pan of 35 cm with oil and coat with flour thn pour the vanilla batter and on the pour the chocolate batter on top like z folded rubon around the pan

Bake in preheated oven for 45 minutes or until the toothpick comes out clean 450 fahrenheit oven 180°C

When it's completely baked let cool for 5 minutes before serve

Enjoy