250g butter - melted
1 cups brown sugar
1 teaspoon baking powder
2 cups flour
1 1/2 rolled oats
1/3 cup milk
1 tsp vanilla essence
1 cup chopped compound chocolate
Mix in butter and sugar then add in egg one after another while mixing is on.
Put in flour that you had pre-sieve with baking powder followed bu oats, milk and lastly .. the chocolate.
Stri well with wooden spatula.
Pour into 13x9inch baking pan (standard size pan). Bake till done.