Hazırlanışı
1Melt 120g butter with 103g milk, then whisk in 190g flour and 250g beaten eggs until smooth.
2Pipe choux pastry into a ring on parchment, brush with beaten egg, sprinkle 40g hazelnuts and 4g powdered sugar.
3Bake at 200°C for 35–40 minutes until golden and crisp. Cool completely before splitting horizontally.
