To prepare saag aloo recipe, pressure cook the potatoes or in a pan of water on the stove top until a skewer goes through. Drain and peel when cool enough to handle. Cut into bite sized chunks and keep aside.
Wash and clean the green leaves. Roll into a bundle, slice thinly and keep aside. You can also use 4oz of frozen spinach to speed up the recipe.
In a large non stick pan, heat the oil.
Sprinkle cumin seeds in hot oil. As soon as the seeds splutter, add garlic, ginger, chillies and stir on high flame for 30 seconds.
Toss the sliced onion along with the rest of the ingredients in the pan. Cook on a medium flame for 4-5 minutes until onions are translucent.
The sliced greens go in at this point. Keep stirring on a high flame until the greens wilt, roughly 1-2 minutes.
Add the cooked potato chunks with all the dry spice powders and salt. Combine all the ingredients in the pan until the potato is coated with the spices and the greens.
Cover and cook on a low flame for 2-3 minutes for the flavours to combine.
Remove and serve hot with rotis.