Onion, Silverbeet and Gruyere Tart Recipe

Ingredients

• 100g diced speck
• 50g unsalted butter
• 2 white onions, thinly sliced
• 1 bunch silverbeet, stems thinly sliced, leaves torn into small pieces
• 3 eggs
• 200g sour cream
• ½ cup (50g) grated gruyere
• 100g goat’s fetta, crumbled
• ground white pepper, to taste
• sweet paprika, to taste
• finely shredded rocket, lemon juice and olive oil, to serve
• 3⅔ cups (550g) plain flour
• 1 teaspoon salt
• 300g chilled unsalted butter, diced
• 1 egg
• ½ cup (125g) sour cream