- Heat ghee in a heavy bottom pan & add grated sweet potato in it. Fry it for few minutes & then add hot milk. Stir it constantly.
- After few minutes add condensed milk, cashew powder, grated mawa and cook it in medium flame till the potato soft.
- Add mango essence. It's optional. Instead of mango essence any other essence or cardamom powder can be used.
- Once the mixture will start to leave the sides of the pan then switch off the flame. Make it cool for few minutes & then mash it well. Take 2tbspn mixture from it, mix yellow food colour and keep aside. Make small yellow balls.
- Take a plate now, spread the rest of the mixture over it. Roll the dough with the help of a roller pin. The dough should be half inch thick . Keep it in fridge for 15mins.
- After that take a heart shaped cookie cutter and cut some pieces from dough. Take a spoon now and scoop out some mixture from the middle of the pieces. Put one yellow balls in it.
- Now apply few drops of liquid jaggery outside the yellow balls for decoration.
- Heart shaped sandesh is ready now. This traditional sandesh generally served in Bengali wedding ceremony.