firstly, in a blender take 180 grams parle-g biscuit and blend to a fine powder. make sure to blend in batches to avoid any pieces of biscuit. keep aside.
in a large bowl, using double boiler method melt 1 cup dark chocolate and 1 tsp butter.
stir and melt until the chocolate melts completely. you can alternatively melt the chocolate in the microwave.
now add powdered biscuit, 2 tbsp sugar, ¼ tsp baking powder and ½ cup milk.
mix well-adding milk as required forming a smooth batter.
to bake the cake in oven or kadai, make sure to preheat for 5 to 10 minutes.
take small ramkein and add half the cup of batter.
drop 4 pieces of dark chocolate pieces into it.
cover the chocolate pieces with cake batter.
place the cups in the kadai and cover.
cook for 10 minutes, on medium flame. or you can bake at 180-degree celcius for 10 minutes.
finally, sprinkle powdered sugar and enjoy parle-g choco lava cup cake.