Heavy cream

Malai

5 g1 teaspoon

15 g1 tablespoon

1 tsp = 4.93 ml; cream density about 1.01 g/ml from USDA household measures.

Instead of Heavy cream

Double cream
Use the same weight. It is richer and whips firmer; loosen with a little milk if the recipe needs pouring cream.
Single cream
Use the same weight, but expect a thinner sauce or filling; do not boil hard or it may split.
Full cream milk
Use 85% of the weight and add 15% melted butter or ghee; simmer to reduce slightly. It will be less rich and will not whip.