Preheat the oven to 180°C/ Fan 160°C/Gas 4. Line two large and one small baking tray with greaseproof paper. Put the milk, butter, half the sugar, salt, vanilla seeds and 125ml of water in a saucepan over a medium heat.
Sift the flour onto a sheet of greaseproof paper. When the butter has melted, pour in the flour. Beat with a wooden spoon, over the heat, until a smooth dough forms that comes away from the edges.
edges. Transfer the dough to an electric mixer and beat for 1-2 minutes to cool. Once cool, add the eggs, one at a time, beating constantly, ensuring each is fully incorporated.
Transfer to a piping bag and pipe 12 éclairs onto the large baking trays, each about 12cm long. Bake for 25 minutes until golden and hollow.
2. Place the popping corn in a saucepan with the sunflower oil over a medium heat. Cover with a lid and shake from time to time until all the corn has popped. In a bowl, mix together the peanut butter, maple syrup and salt until smooth.
smooth. Add the popcorn and toss to coat. Transfer to the small baking tray and bake for 5 minutes to crisp, turning halfway through. Set aside.
Mix the yogurt, remaining sugar and caramel until smooth. Transfer to a piping bag and chill until needed. Transfer the cooked éclairs to a wire rack and when cool enough to handle, pierce a small hole in the end of each one.
When cold, pipe in the yogurt mixture, drizzle over the melted chocolate and sprinkle with the popcorn. Leave to set, then serve.