1 cup raw cashews
2 teaspoons garam masala
2 teaspoons ground coriander
3/4 teaspoon chili powder
3 cloves garlic chopped coarsely
2 teaspoons fresh ginger, grated
2 tablespoons white vinegar
1/3 cup tomato paste
1/2 cup high fat yogourt (4% or higher)
6-8 boneless, skinless chicken thighs, cut into chunks
2 tablespoons butter
1 onion, finely chopped
1 cinnamon stick
4 cardamom pods, bruised
1 teaspoon paprika
1 1/2 cups crushed tomatoes
3/4 cup chicken stock
2 tablespoons whipping cream (optional)