Storage
Refrigerate covered up to 3 days.
For best texture, let slices sit at room temperature 15 to 20 minutes before serving.
Notes
Flour weights vary by how you measure. The gram amount above (300 g) assumes spooned and leveled cups for a tender cake.
Store bought whipped frosting spreads best when cool. Chill it 20 to 30 minutes if it feels soft while frosting.