For making rajbhog we need to prepare chena first. For this take milk in a utensil and place it on flame for heating.
For coagulating milk, make a tatri mixture by dissolving tatri (tartaric acid) in ½ cup water. When milk starts boiling; turn of the gas. Take it off from flame and allow it to get frigid. Make sure milk is 80% warm. Now add little tatri acid mixture at a time and keep stirring the milk. When milk coagulates completely stop adding tatri mixture into it. Within 2 minutes milk coagulates.
Now wash a white muslin thin cloth and spread it over a sieve. Place the sieve over a big utensil. Pour the coagulated milk over the cloth, chena will be collected over the top and water will drain out in the utensil kept beneath. Lift up the cloth from all sides, hold and squeeze out rest of the water. Chena is now ready.
Take out chena in a big plate and knead with your fingers until smooth. Add ararot in chena and mix well. Chena for making rajbhog is ready.
Cut cashews and pistachios into small pieces (you can also soak pistachios in lukewarm water and remove its skin). Peel and crush cardamom for making powder. Mix 1 tbsp chena and all chopped dry fruits for making stuffing (you can add yellow or red food color in stuffing as per your taste). Prepare rajbhog balls now.
Divide chena into small equal parts (divide this much quantity into 12-14 parts). Take one chena part and flatten in with your hands. Make a well and place ¼ tsp stuffing in it. Lift up the chena from all sides and close the stuffing nicely. Roll it back into a round ball and place it on a plate. Like wise prepare all rajbhog balls.
Take sugar in any big utensil and add 2.5 cup of water. Cook until sugar melts completely. If the sugar consists of some dust particles then add ½ cup milk into it. There will be a formation of froth on the surface. Remove this with help of a spoon. Syrup doesn’t needs to be of one or two thread consistency. When syrup starts boiling, place rajbhog into it one by one. Keep the flame high, as there should be constant boil in the syrup.
Cover and cook rajbhog so that there is constant formation of froth, as these will help in cooking rajbhog nicely. Within 8-10 minutes syrup will start getting thick in consistency. Now add 1-1 tsp water at a time in syrup making sure there is constant boil in the syrup. Cook rajbhog in boiling syrup for 20 minutes.
When rajbhog will get frigid add 1-2 pinch of food color or 1 tbsp saffron water in the syrup and mix well. Yellow-golden rajbhog are ready. Keep the rajbhog as it is sugar syrup and enjoy eating for 1 week.