Achari Chicken Kebab

Name: Achari Chicken Kebab
Ingredients: 1 ½ pounds skinless chicken thighs (cut into bite-sized pieces); 1 teaspoon fennel seeds; ¼ teaspoon fenugreek seeds; ¼ teaspoon kalonji (nigella seeds) (onion seed); ¼ teaspoon black peppercorns; 3 cardamom pods; 1 teaspoon coriander powder; 1 teaspoon sea salt; ½ teaspoon Kashmiri chili powder; ½ teaspoon paprika; 2 garlic cloves (minced or grated); 1- inch knob ginger (minced or grated); ½ teaspoon turmeric powder; 2 tablespoons mustard oil; ½ cup coconut cream from the top of a refrigerated can of coconut milk.