Add white chocolate chips to a microwave-safe bowl. If using chocolate bar, chop it into small pieces and add to the bowl.
Melt it in the microwave in 20-second increments until the chocolate pieces begin to melt. Stir regularly to keep moving the chocolate pieces around. Note: It is very important to heat in 20-sec increments to prevent the white chocolate from clumping or burning.
When the chocolate has melted, stir it well until completely smooth. Add cardamom powder and stir to combine.
Invert a baking sheet and line it with a silicone baking mat or parchment sheet. Pour the white chocolate over that and use an offset spatula to spread it into an even ⅛-inch thickness.
Spread the jalebi pieces evenly all over the white chocolate layer. Crush 1-2 motichoor ladoos and spread them evenly. Top with sliced pistachio and dried rose petals.
Use a spatula to gently press down the jalebi, nuts, and rose petals into the wet chocolate. Transfer the baking sheet to the refrigerator ad chill it for 1-2 hours, until it the chocolate sets.
Remove the tray and use a chef's knife to cut into your desired shapes. Enjoy with a cup of tea.
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Notes
Mithai selection: I use jalebi and motichoor ladoo for this bark, but feel free to use any dry mithai, like kalakand, besan burfi, or coconut burfi. Avoid using extra juicy sweets like gulab jamun.
Chocolate: Use any great quality white chocolate chips or bar, whatever you have on hand. The chocolate bar melts slightly better than the chips though.
Melting tip: It is very important to melt chocolate in 20-second increments to prevent clumping or burning.
Using a double boiler instead: If you like, you can melt the chocolate using a double boiler method. Just be sure to turn the heat down to medium-low after the water comes to a boil, and only then place the chocolate bowl on top.
Cardamom: Fresh cardamom powder makes a huge difference in flavor, but feel free to use store-bought powder if that's what you have.
Nuts and rose petals: Pistachios and dried rose petals make a great addition here. Alternatively, use sliced almonds, or cashews, or feel free to skip them altogether.
Note: The nutrition facts below are my estimates and do not include ladoo and jalebi due to the unavailability of accurate nutritional data. If you follow any diet plan, I recommend cross-checking with your preferred nutrition calculator.