1 cup yogurt
1 tablespoon lemon juice
2 teaspoons ground cumin
1 teaspoon ground cinnamon
2 teaspoons cayenne pepper
2 teaspoons freshly ground black pepper
1 tablespoon minced fresh ginger
4 teaspoons salt, or to taste
3 boneless skinless chicken breasts, cut into bite-size pieces
4 long skewers

1 tablespoon butter
1 clove garlic, minced
1 jalapeno pepper, finely chopped
2 teaspoons ground cumin
2 teaspoons paprika
3 teaspoons salt, or to taste
1 (8 ounce) can tomato sauce
1 cup heavy cream
1/4 cup chopped fresh cilantro