preheat the oven to 200 deg cel
take a mixing bowl and mix flour, sugar, cocoa powder, baking powder, salt and red food color until evenly combined.
add vanilla essence, milk, oil and mix until thick batter
add more milk and make it thin to the cake batter consistency
pour in a greased pan, or mug or ramekins
bake at 200 deg cel for 15 minutes.
serve warm.