Indian butter chicken

aka Murgh Makhani. Based on Cook's Illustrated

For Garam masala: 1 tsp cinnamon, 1/2 tsp cloves, 1/8 tsp nutmeg

For tomato paste: 1/2 cup *or* a 6 oz can.

1 cup heavy cream *or* 1 and 1/4 cup cream.