Chicken Sandwich

Directions

1. 1
   Soak chilies in hot water to cover overnight (or at least 4 hours).
2. 2
   Drain chilies, stem and seed.
3. 3
   Transfer chilies to processor or blender along with onion, garlic and vinegar.
4. 4
   Process (or blend) until smooth.
5. 5
   With machine running, add oil through food tube.
6. 6
   Season with salt and lime juice.
7. 7
   (May be prepared 2 weeks ahead, covered and refrigerated).
8. 8
   Blend ancho paste with mayonnaise to coat chicken (amount depends on how wet you like your chicken salad).
9. 9
   Cut rolls in half, hollowing out each half.
10. 10
    Toast rolls until crisp and butter well.
11. 11
    Top rolls with chicken salad and garnish with cilantro sprigs.