Steam the gooseberries in a steamer for 15 minutes or cook in a pressure cooker until 1 whistle.
Let the gooseberries cool; de-seed and separate into flakes.
Mix the gooseberry flakes with sugar and black salt in a deep bowl.
Cover the bowl and keep outside in the shade for 1-2 days. Turn with a dry spoon 2-3 times a day.
Spread the amla flakes on a plate lined with baking paper.
Drain the excess sugar from the amla and arrange them on a baking sheet on a tray
Allow to dry in the shade for a further 2-3 days.
Optionally toss them in powdered sugar once they have dried, this allows any extra moisture to be absorbed by the sugar.
Notes
Note: The candy can be stored in the refrigerator or in a cool, dry place.Depending on the weather, you make keep the amla in sugar for a day or 2.If you make it with less sugar then it will be less moist.If you do not have strong enough heat from the sun to dry these out after a day or 2,then warm an oven for 5 minutes,turn off the heat, and keep the tray in the oven for few hours.Do the same step next day as well to dry them out , else if they are not dried in 3-4 days, they will start to get spoilt.