Wash it, peel it again wash it & grate the carrots, either with a hand held grater or in a food processor
Put milk in a thick & deep bottomed pan & boil it & add grated carrots
On a low to medium flame, bring the whole mixture to a boil & them simmer
Cook this mixture on low to medium flame, the milk will froth & start reducing slowly & slowly

Keep on stirring this halwa mixture often, keep scraping the sides of the pan to remove the evaporated milk solids, add the milk solids to the cooking mixture
The mixture should reduce 75% & then you add sugar, stir & continue to simmer on a low flame till the mixture starts thicken & reduce more, stir in intervals
Now add ghee

Continue to stir & simmer till the whole mixture becomes dry. The milk should evaporate & you will see fine milk solids in halwa, remember to scrape the milk solids stuck at the sides of pan & add them to halwa. Some moisture is also fine in the halwa
Add saffron, cardamom powder, almond & pista
& stir it.
Serve halwa hot,