Whisk yogurt with salt smoothly. Keep aside to refrigerate till further use.
½ Cup Plain Yogurt/Dahi, Salt
Chop pineapple in small pieces.
1 Cup Pineapple
Cook with turmeric and sweetener till soft. You may add little water.
Sweetener(Jaggery/Sugar), ¼ tsp Turmeric Powder
Crush mustard seeds coarsely in mortar pestle.
½ tsp Black Mustard seeds/Rai
Make smooth coconut paste with fresh coconut, green chillies and cumin seeds. Add crushed mustard seeds.
¼ Cup Coconut Chunks/grated, 1-2 Green Chillies, 1 tsp Cumin Seeds
Add coconut paste to cooked pineapple pieces and cook for another 5-7 mins.
When done cool it completely.
Add to whisked yogurt.
Prepare tempering.
Heat oil in a tadka/small pan. Add mustard seeds.
1 tsp Coconut Oil, ½ tsp Black Mustard Seeds/Rai
When seeds crackle add curry leaves and dry whole red chilli. If using Urad dal add with mustard seeds.
1-2 Dry Whole Red Chilli, 5-6 Curry Leaves, ½ Urad dal
Add to pachadi. Cover and refrigerate till serving time or serve immediately.