For the Tzatziki

• Place the yogurt in a cheesecloth or a fine sieve and hang over a bowl for a minimum of 1 hour.
• Grate the cucumber and place in another sieve suspended over a bowl to drain.
• Once the yoghurt and cucumber have drained, combine in a bowl with remaining ingredients and mix well. Season to taste. Set aside in a small serving bowl in the fridge.

For Dolmades

• Add herbs to a mini-food processor and blend until smooth. Set aside in a medium bowl.
• Add the onion, garlic and chilli to the food processor and blend until smooth.
• Add oil to a medium frypan on a medium heat. Add the onion mixture and cook for 5 minutes until softened. Add the rice and cook for a further 2-3 minues.
• Transfer the rice mixture from the frypan to the bowl with the herbs. Add 200ml of the stock and half of the tomatoes, stirring to combine.
• To assemble the dolmades, bring a saucepan of water to the boil. Blanch the vine leaves in the water for 10 seconds.  Remove and dry with a paper towel.
• Lay each leaf on a clean board and place 2 tablespoons of the filling in the centre. Bring the base of the leaf up to cover the mixture then fold in each side. Roll tightly and set aside.  Repeat with remaining mixture.
• Place a piece of baking paper at the base of a pressure cooker. Arrange the dolmades on top, creating two layers if necessary. Cover with the remaining tomato and enough stock to cover. Place another piece of baking paper on top to create a cartouche then put a plate on top to hold the mixture down.  Cook on pressure for 30 minutes.
• Meanwhile prepare the Avgolomono Sauce. Place the stock in a small saucepan on a medium heat and warm gently.
• In a medium bowl, whisk the egg. Add the lemon juice then slowly add warm stock, whisking continuously.
• When the dolmades have cooked, remove the plate and the cartouche then pour the avgolomono sauce over the vine leaves. Give the bowl a shake to allow the sauce to settle. Allow to cool to room temperature.
• When the dolmades have cooled, serve on a plate with the tzatziki.