1 onion, chopped
4 cloves garlic, minced
1 Tbsp. cumin
1 tsp. salt
1 tsp. ground ginger
1 tsp. cayenne pepper
1/2 tsp. cinnamon
1/4 tsp. turmeric
14 oz. can tomato sauce
1 c. whipping cream
2 tsp. paprika
1 Tbsp. sugar
1 Tbsp. vegetable oil
4 chicken breasts, cubed
1/2 tsp. curry powder
Add tomato sauce into the onion mixture. Bring to a boil, then reduce heat to low. Simmer for 10 minutes. Mix in cream, paprika, and sugar. Bring sauce back to a simmer, and cook, stirring often, until the sauce thickens, about 10-15 minutes.
Heat oil in a different skillet over medium heat, then add in the chicken and curry powder. Sear chicken until starting to brown on the outside, but still pink on the inside, about 3 minutes. Make sure you stir often. Transfer chicken and any pan juice into the sauce. Simmer chicken and sauce until the chicken is cooked through, about 30 minutes.
Serve as is or over hot rice.
Here's a link to the original recipe: http://allrecipes.com/recipe/curry-stand-chicken-tikka-masala-sauce/