Leek, Swiss chard and feta tart recipe | Gourmet Traveller

Ingredients

• 75 gm butter, diced
• 200 gm leeks, (about 2 small; white part only), thinly sliced
• 150 gm Swiss chard, leaves and stalks sliced
• 1 tbsp thyme
• 2 small eggs
• 150 gm sour cream
• 50 gm feta, crumbled
• 25 gm Gruyère, coarsely grated
• 15 gm plain flour
• Sour cream pastry
• 250 gm (1 1/3 cups) plain flour
• 150 gm chilled butter, diced
• 1 egg, lightly beaten
• 125 gm sour cream