1. Kalakand - In a non-stick pan, add the blended peas and stir fry till dry. Keep aside.
In the same pan add all the ingredients including the green peas. Mix and stir on a low flame till it starts to leave the sides of the pan. Switch off the flame and keep aside.
2. Sandwich - Spread some butter on the bread slices and make sandwiches in a sandwich maker with the kalakand as stuffing. Cut them into 4 slices and keep aside.
3. Instant rabdi - In a bowl, mix together all the above mentioned ingredients and keep aside for 15-20 minutes for the saffron to soak well. Your instant rabri is ready.
4. Garnish - To serve - Arrange the kalakand sandwiches on a plate and pour the rabri over it. Garnish with chopped almonds, pistachios and rose petals. Your Shahi Kalakand Sandwich Tukda is ready to enjoy.
Note - 1. I used evaporated milk for instant rabri, but equal quantities of condensed milk and full fat milk can be substituted or you can reduce a litre of full fat milk to the desired consistency
2. You can make sugar syrup and soak the sandwiches in it for a while. I avoided it as it turns too sweet.