Quail Egg Canapés with Smoked Salmon, Avocado and Pickled Cucumbers Recipe

Ingredients (10)

• 1 large cucumber
• 1/2 cup champagne or white wine vinegar
• 1/4 teaspoon salt
• 1/4 teaspoon sugar
• 1/4 teaspoon dried red pepper flakes
• 1 small ripe avocado, halved
• 4 ounces thinly sliced smoked salmon
• 2 tablespoons butter, divided
• 12 fresh quail eggs
• Salt and freshly ground black pepper