the best shrimp and clams with pancetta

Please follow exactly as shown and you\'ll wind up impressing someone. 2 servings.
12 ea. 16-20 ct. shell on shrimps only. 12 ea. little neck clams. 2 bay leaf, 3/4 c. minced onions or 1/4 c. shallots, 5 garlic cloves, 1 c. heavy cream, 1 c. dry white wine, 1/8 c. pancetta, 1 tsp. salt and pepper mix for raw shrimp, 1/3 c. flour, 1/4 c. cognac/brandy, 2 T. ea. butter and olive oil, 1/4 c. scallions.