Dinner Tonight: Quick Tikka Masala Recipe

Name: Dinner Tonight: Quick Tikka Masala Recipe
Ingredients: 4 skinless chicken breasts, cut into 1/2-inch cubes; 2-inch piece fresh ginger, peeled; 1 clove garlic, minced or pressed; Salt and pepper to taste; 1/2 cup cilantro, finely chopped; 1 lemon; 3 tablespoons vegetable oil; 1 red onion, roughly chopped; 1 teaspoon chili powder; 1 teaspoon garam masala or other curry powder; 1 teaspoon ground turmeric; 10 ounces light cream, or 3/4 cup plain yogurt plus 1 teaspoon flour; 2 teaspoons tomato paste