Mix coffee in ½ Cup hot milk/water. Set aside to cool.
Whip cream to soft peaks. Refrigerate till further use. You can use store bought Whipped Cream.
Melt white chocolate chips in microwave for about 1 mins.. White Chocolate melts at low temperature. Let it sit for a while, and then mix it well. Keep aside and let it cool.
Similarly melt semi-sweet or milk choco-chips, it takes about 2 mins in microwave.
Or melt in double boiler. Take a dry bowl and make sure water droplets don't seep in chocolate else it with become grainy/seize.
Take out whipped cream from refrigerator, mix about 3-4 tbsp of milk coffee mix in whipped cream and fold lightly. Add more coffee in milk if you want strong coffee flavor.
Add half of the whipped cream mixture and fold in White Chocolate ganache, and other half with milk chocolate ganache.
Transfer to pipping bags or zip lock bags.
Layer biscuits, cookies, cake or sponge that you want to use. Soak in coffee mix. use a spoon.
Pipe Coffee Mousse and then Chocolate Mousse.
Add more layers of there is more space in your bowl/glass.
Dust more cocoa powder or chocolate powder or chocolate shavings.
Chilli and serve.
You can layer dessert in a square or rectangular dish for a big batch.
Makes about 4 shot glass portion. To make a big batch adjust the ingredients as required.