Mix your butter and sugar together until it's fluffy

Whisk your eggs very well in another bowl

Sieve the flour into another bowl and add your baking powder, salt, milk flavor,

Add your egg to the mixture of the butter and sugar and mix, then grate your orange back into the mixture and mix very well.

Then pour your flour gradually inside the step 4

Then pour your orange juice and the liquid milk into the mixture

Greese your baking pan and pour the mixture inside.