28 cm square cake
- Pastry flour or top flour 40 g
- Corn flour (cornstarch) 20 g
- Preheat oven to 200°C. Line a 28 x 28-cm flat square cake pan with parchment paper.
- Sift flours twice. Melt butter over a pot of simmering water or in a microwave oven.
- To make meringue, place egg whites in a clean bowl and beat until foamy. Add