Easy Butter Chicken

Ingredients

• 1 tablespoon butter
• 1 tablespoon olive oil
• 1 medium onion (small diced)
• 2 teaspoon ginger (grated)
• 3 garlic cloves (minced)
• 1 tablespoon garam masala
• 1 teaspoon chili powder
• 1 teaspoon mustard seeds
• 1 teaspoon coriander
• 1 teaspoon curry
• 2 pounds chicken breast (cut into ¾-inch chunks)
• 3 ounces tomato paste
• 3 ounces red curry paste
• 1 teaspoon salt
• ¼ teaspoon black pepper
• 1 (14-ounce) can coconut milk
• Rice or naan (for serving)
• Cilantro (for serving)