Step 1

In a medium sized pan, melt 1 tbsp of butter on medium heat. Add chopped onion and pan fry until golden brown. Remove from heat and transfer the onions to a food processor. Blend the onions while slowly adding about a tablespoon of water until smooth. Transfer the onions back to the pan on low to medium heat.

Step 2

While the onions are blending, add the pasta to a pot of salted boiling water and cook to instruction. Reserve a 1/2 cup of pasta water

Step 3

Stir in the ginger garlic paste, tomato paste, and salt to taste into the onion paste. Cover the sauce pan with a lid until the butter starts separating a little on the sides and the tomato turns a darker color. Be sure to stir it every now and then. The sauce should be very thick at this point.

Step 4

Add all the spices and mix together well. Stir in the cream, and then the 1/2 cup of hot pasta water. Simmer until butter starts to separate and the sauce thickens. Pour in your pasta. Once the sauce is incorporated, mix in 1 tbsp of melted butter before plating the pasta and garnishing with cilantro.