Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/2  teaspoons     fresh ginger -- peeled
   1 1/2  teaspoons     garlic
   1      teaspoon      garam masala
     1/4  cup           cashew paste
   1      cup           sour cream or plain yogurt
   1      teaspoon      salt
     1/4  teaspoon      ground white pepper
   1      pinch         saffron -- soaked in 2
                        -- tablespoons lukewarm water
   1 1/2  tablespoons   freshly squeezed lemon juice -- from 1 lemon
   2      pounds        boneless -- skinless chicken
                        -- breasts, cut into
                        -- 2-inch pieces
   1      tablespoon    heavy cream -- (optional), up to 2
                        fresh lemon slices -- for garnish
                        fresh coriander leaves -- for garnish
                        metal or wooden skewers

Preparation:

1. Grind ginger and garlic into a paste using a small food processor. 2. Combine all ingredients in large bowl, add chicken, and cover with the yogurt-spice mixture. Add cream if marinade seems too thick. Marinate, covered in refrigerator for 2 hours. If using wooden skewers, soak in water for 1 hour. 3. Heat oven to 350F. Skewer chicken, leaving space between pieces on each skewer. Place skewers on baking sheet, and bake 20 to 30 minutes. To serve, remove chicken pieces from skewers. Arrange on plate with lemon slices, and top with coriander leaves.