Chicken Tikka Masala

Name: Chicken Tikka Masala
Ingredients: For the garam masala:; 1 tablespoon coriander seeds; 1 tablespoon cumin seeds; 1 tablespoon black pepper corns; 1 tablespoon white pepper corns; 1 tablespoon fennel seeds; 6 whole green cardamon pods; 1 teaspoon fresh ground nutmeg; 1 teaspoon whole cloves; 3 whole star anise; 1 tablespoon black mustard seeds; 1 teaspoon cinnamon; For the chicken tikka masala:; 4 chicken breasts; 1/2 cup greek yogurt; 6 tablespoon unsalted butter; 1 cup heavy cream; 1 medium yellow onion; 1 medium jalapeno pepper; 4 cloves garlic; 1 can (28 oz) diced tomatoes; 2 tablespoon ginger; Salt and pepper; 1 handfull cilantro; 1/2 cup almonds; Cilantro and almonds