Now make instant thick  gravies with a paste made using Maharashtrian Kala masala and Maharashtrian Banga masala and water. No need to add those thick cream or loads of butter. Just add 2 masalas in equal quantity to cup of water to make a paste and your no onion, garlic or tomato gravy is ready.
Here is an introduction to these wonder masalas from rural Maharashtra.

Maharashtrian Kala Masala is a rich, aromatic spice blend used in many traditional Maharashtrian dishes like usal, bharli vangi, masale bhaat, and kala chana curry. It has a deep roasted flavor with smoky, spicy, and slightly earthy notes.

Maharashtrian Banga Masala is a flavorful homemade spice mix containing rice, Bengal gram, pearl millet flours commonly used in rustic Maharashtrian curries, bhajis, usal, and stuffed vegetables. It has a balanced taste with roasted spices, coconut, sesame, and dry red chillies.

Note: Both masalas of many brands  are available online on Amazon.in