We love the heat level in this slow cooker take on tikka masala to fend off winter chill. If the spice kick is too much for your family, you can cut the red pepper down by half without losing any of the dynamic flavor layers.
1. Heat oil in a large nonstick skillet over medium-high heat. Add onion, ginger, and garlic to pan; cook 6 to 7 minutes or until starting to brown, stirring occasionally. Stir in tomato paste and tomatoes; bring to a simmer, and cook 3 minutes. Combine 1/3 cup water and flour in a small bowl, stirring with a whisk until smooth. Add flour mixture, garam masala, paprika, curry powder, salt, and pepper to pan; stir well. Bring to a boil; cook 1 minute.
2. Place chicken thighs in a 6-quart slow cooker coated with cooking spray. Add tomato mixture to slow cooker. Cover and cook on LOW 7 hours or until chicken is very tender and sauce has thickened. Turn slow cooker to HIGH; uncover and add coconut milk, stirring with a whisk. Cook, uncovered, 15 minutes. Turn cooker off; stir in cilantro. Let stand 10 minutes. Serve over rice. Top each serving with 1 tablespoon yogurt.