Sauces (not BBQ)

[WV]

I'll add the whole recipe (It's Bobby Flay's) because it's awesome, but the sauce is really killer.

Blue Crab and Salmon Griddle Cakes with Smoked Salmon and Roasted Serrano Chile Buttermilk Sauce
Ingredients
Roasted Serrano Chile-Buttermilk Sauce:
1 cup sour cream
1/2 cup buttermilk
2 serrano peppers, roasted, peeled and finely chopped
4 cloves garlic, finely chopped
Squeeze lime juice
Salt and pepper
Directions
Combine all ingredients in a small bowl, season with salt and pepper and refrigerate at least 30 minutes.


Poached Salmon:
1 salmon fillet, 6 ounces
Water
1 bay leaf
4 parsley sprigs
3 tablespoons lemon juice
4 black peppercorns
Place salmon in a small saucepan. Cover with water and add the remaining ingredients. Bring to a simmer and cook for 8 to 10 minutes, until just cooked through. Let cool and flake with a fork.


Griddle Cakes:
Flaked poached salmon
8 ounces jumbo lump crab meat, flaked
2 tablespoons prepared mayonnaise
2 tablespoons Dijon mustard
1 tablespoon prepared horseradish, drained
1/2 cup finely chopped red onions, sweated
3 cloves garlic, sweated
2 egg whites, stiffly beaten
1/2 cup dried bread crumbs
1/4 cup finely chopped parsley
Salt and freshly ground pepper
Canola oil, for cooking
Garnish: Smoked Salmon
Place flaked salmon and crab in a medium bowl. Add mayonnaise, mustard, horseradish, red onions, garlic and mix until combined. Fold in egg whites then remaining ingredients and season with salt and pepper Heat 2 tablespoons of canola oil in a large saute pan. Add 1/4 cup of batter for each cake and flatten slightly. Saute on each side for 2 to 3 minutes or until golden brown. Top each pancake with a few slices of smoked salmon and drizzle with Roasted Garlic-Buttermilk Sauce. Garnish with chives and cilantro and finely chopped red pepper.