Gorgonzola, Pear and Oregano Galette

Ingredients

• 1 tbsp olive oil
• 1 large white onion, thinly sliced into rounds
• 2 tbsp honey, plus extra to serve
• 2 tbsp white wine vinegar
• 150g gorgonzola, chopped
• 3 small buerre bosc pears, thinly sliced on a mandolin
• 1 egg, lightly beaten
• 1⁄4 cup oregano leaves, to serve
• 2 cups (300g) plain flour
• 1⁄2 cup finely grated parmesan
• 1⁄2 tsp sea salt flakes
• 150g cold unsalted butter, chopped into 2cm pieces
• 1 egg
• 1-2 tbsp iced water