In a bowl take white chocolate n butter n melt it

Now add condensed milk + milk/water+vanilla essencen mix well

Now seive maida n baking powder n add chopped oreo biscuits n white chocochips n mix with cut n fold method

Now pour e batter in 8by8 inch square pan n garnish it with oreo biscuit

Now bake e blondie at preheated oven at 170 degree Celsius for 30-35 mins.