Stargazy Pie (English Sardine Pie) | Saveur

Ingredients

• 2 ¹⁄₄ cups flour, plus more for dusting
• 1 tsp. kosher salt
• 1 tsp. mustard powder, preferably Coleman’s
• 12 tbsp. unsalted butter, cubed and chilled
• 6 tbsp. ice-cold water
• 6 slices bacon, cut into 1” pieces
• 2 tbsp. unsalted butter
• 1 medium yellow onion, finely chopped
• ¹⁄₂ cup chicken stock
• ¹⁄₃ cup crème fraîche
• 2 tbsp. English mustard, such as Colman’s
• 2 tbsp. finely chopped parsley
• 1 tbsp. fresh lemon juice
• 2 eggs, beaten
• Kosher salt and freshly ground black pepper, to taste
• 8 fresh sardines, cleaned, heads attached
• 3 eggs, hard-boiled, peeled, and sliced