Eggless Condensed Milk Cake Recipe

Ingredients:
1 cup all-purpose flour (maida)
1/2 cup condensed milk
1/2 cup milk
1/4 cup melted butter or oil
1/2 cup sugar
1 tsp vanilla extract
1 tsp baking powder
1/2 tsp baking soda
A pinch of salt
1 tbsp vinegar or lemon juice