whole tomatoes in puree, 1 teaspoon coriander seeds, 1 teaspoon cumin seeds, 1 teaspoon
cardamon pods, 6 cloves of peeled garlic, 1 inch piece of ginger peeled, 1 teaspoon turmeric,
1 teaspoon red pepper flakes, 1 teaspoon salt, 2/3 cup yogurt (I used homemade, recipe found
here). You may use ground spices instead, be sure to skip the next three steps.
remove larger pieces.
sauce on low for 10 minutes at least.
chicken like they do in Indian curry.