Lobster Pot Pie

Ingredients

• 1 – 2 lobster tails , 4-6 oz each
• 2 Tb butter , divided
• 1 Tb sherry
• 8 oz clam juice , 1 bottle
• ¼ C celery , diced
• ¼ C carrot , diced
• ¼ tsp ground paprika
• 1 tsp tomato paste
• kosher salt and freshly ground black pepper , to taste
• 1 pinch ground cayenne pepper , or, to taste
• 1 Tb all-purpose flour
• ⅓ C cubed Yukon Gold potatoes
• 1 sheet frozen puff pastry
• 1 large egg , beaten
• 1 tsp lemon juice , freshly squeezed
• ¼ C heavy cream
• 1 Tb fresh tarragon , minced