When we curdle milk using lemon juice, we get whey, which has many nutritional benefits. I was on the process of making rasagullas. Also, I made a quick soup with this whey water. We can use whey water in making dough for chapathis. Leftover whey can be stored in bottles and kept under refrigeration. This can be used in curdling the milk for the next time. Detailed nutritional benefits of whey can be found here.
Whey - 1/2 litre
Potato - 1
Carrot - 1
Garlic - 1 clove (crushed)
Onion - 1 (finely chopped)
Butter - 1 tablespoons
Chilli flakes - 1 tsp.
Pepper powder - 1/2 tsp.
Celery or coriander leaves- 1 tablespoon
Salt - 3/4 tsp. or as per taste
Peel and grate potato and carrot.
In a kadai, melt butter, add onions and garlic saute till it diffuses its raw smell. Add the grated potato, carrot and salt. Saute in high flame for 2 minutes. Pour in the whey water and allow it to boil. Transfer it to soup cups and add chilli flakes, pepper powder and finely chopped celery. Serve piping hot.