3 tablespoons olive oil
1 small onion, chopped
2 cloves garlic, minced
3 tablespoons curry powder
1 teaspoon ground cinnamon
1 teaspoon paprika
1 bay leaf
1/2 teaspoon grated fresh ginger root
1/2 teaspoon white sugar
salt to taste
2 skinless, boneless chicken breast halves - cut into bite-size pieces
1 tablespoon tomato paste
1 cup plain yogurt
3/4 cup coconut milk
1/2 lemon, juiced
1/2 teaspoon cayenne pepper