Shellfish with Butter Broth and Honey Emulsion

Combine first 9 ingredients in large pot. Bring to boil. Reduce heat, cover, and simmer 10 minutes to allow flavors to develop. Add clams to broth in pot; increase heat and bring to boil. Cover and cook until clams open, 6 to 8 minutes. Using tongs or slotted spoon, transfer clams to large bowl (discard any that do not open). Add mussels to boiling broth in same pot; cover and cook until mussels open, 4 to 5 minutes. Using tongs or slotted spoon, transfer mussels to bowl with clams (discard any that do not open); cool slightly. Discard broth. Remove clams and mussels from shells; discard shells. Place lobster tails on steamer rack set in large pot filled with just enough water to reach bottom of steamer rack. Bring water to boil. Cover; steam until just cooked through, 7 to 8 minutes. Transfer lobster to bowl of ice water and cool 10 minutes. Using kitchen shears, cut shell of 1 lobster tail open and remove lobster meat from tail; discard shells. Repeat with second lobster tail. Cut meat into 1/2-inch pieces. DO AHEAD: Seafood can be cooked 4 hours ahead. Cover separately; chill.