- Egg 1
- Egg yolks 3
- Vanilla extract 1 tsp
- Preheat oven to 180°C. Line a 28 x 28-cm flat square cake pan with parchment paper.
- Combine egg, egg yolks and vanilla extract in a small bowl and beat lightly. Set aside.
- Place butter in a small saucepan, and heat gently until melted. Add flour