White Chocolate Lava Cake

100 g salted butter

200 g white chocolate

100 g plain flour

100 g vanilla sugar

5 eggs

Break the chocolate into a heatproof bowl along with the butter and melt gently in a microwave for 20 seconds at a time, until just melted.
Crack the eggs into another bowl and whisk together with the sugar. Beat in the chocolate and butter mixture. Fold in the flour.
Grease the inside of 4 ramekins with butter and then dust with flour.
Divide the mixture between the moulds, shake to level out then freeze for at least 2 hours.
Preheat the oven to 180°C. Place the frozen lava cakes on a baking tray and bake for 15 minutes.
Remove the lava cakes from the oven and leave at room temperature for 2 minutes to rest. Carefully turn out onto a serving plate