For Paan Shrikhand
In a muslin/cheese cloth, add yogurt/dahi and hang it for 4-5 hours or put it in a strainer folded in a cloth with a heavy thing on top to remove all the whey/moisture.
In a blender jar, add betel leaf, milk, and gulkand and blend until smooth.
In a big mixing bowl, add the thick hung dahi, powdered sugar, and strain the paan mixture over it.
Add green food color and whisk it until you get a smooth, glossy texture.
Add cardamom powder, mix it, and keep it aside in the fridge.
For Chocolate Tart
In a food processor, blend Biscoff cookies, ghee, and milk. Make a soft but crumbly mixture.
Take a tart pan or mini tart molds, add the tart mixture to the mold, press with a spoon or use a small flat cup to set the edges and bottom.
Place the prepared tart pan/molds in the fridge for about 1-2 hours to set completely.
Process
Now, fill the shrikhand in a piping bag to easily fill the tart without any mess.
Fill the shrikhand in the tart, use different piping nozzles to create decorative design.
Top with tutti frutti, rose petals, and fennel candy mukhwas over the shrikhand.
Keep the filled tart in the fridge until you serve.
The Paan Shrikhand Chocolate Tart is ready to serve. Serve it as a dessert and enjoy.