Red Onion and Smoked Salmon Quiche | RICARDO

Ingredients

• 11/4 cups (190 g) unbleached all-purpose flour
• 1/2 tsp (2.5 ml) baking powder
• 1/2 tsp (2.5 ml) salt
• 6 tbsp (80 g) cold unsalted butter, cut into cubes
• 1/4 cup (60 ml) cold water
• 4 small red onions, thinly sliced
• 1/4 cup (55 g) butter
• 2 tbsp (30 ml) cider vinegar
• 6 eggs
• 1/2 cup (125 ml) milk
• 1/2 cup (125 ml) 35% cream
• 1/2 tsp (2.5 ml) thyme, finely chopped
• 1/2 cup (125 ml) sour cream
• 5 oz (140 g) smoked salmon
• 3 cups (75 g) lamb’s lettuce