Sprout, comté & walnut tart recipe | Good Food

Ingredients

• flour for dusting
• 2 tbsp olive oil
• knob of butter
• 1 leek sliced
• 1 sharp green apple diced
• 200g brussels sprouts shredded
• 1 tbsp lemon juice
• 200ml double cream
• 50g natural yogurt
• 100g comté (or vegetarian alternative), grated, plus extra to serve
• 3 eggs
• freshly grated nutmeg
• handful of walnuts
• 50g pumpkin seeds blitzed to a crumb
• 150g spelt flour
• 1 tsp dried thyme
• 5g grated parmesan or vegetarian alternative
• 125g butter
• 1 egg yolk