1 cup plain yogurt
1 bunch cilantro, stems removed and roughly chopped
6 garlic cloves, peeled
1 3-inch piece fresh ginger, peeled and cut into chunks
1/2 medium onion, peeled and cut into chunks
3 tablespoons garam masala (Indian spice mix)
Juice of 3 large limes
Salt and pepper to taste
2 pounds boneless skinless chicken breast halves (cut into 1-inch pieces) *
Combine all ingredients except chicken and puree in a blender until a nice thick marinade forms.
Place chicken cubes in a large bowl and toss with the marinade. Cover and refrigerate for at least 4 hours to 8 hours.