Room Temperature Rule: All ingredients should be at room temperature for smooth mixing and even texture – take eggs and dairy out 2 hours before baking. Buttermilk Science: The acid reaction between vinegar and almond milk creates the signature tangy flavor and tender crumb texture that makes red velvet special. Color Development: Natural beetroot powder provides beautiful color without artificial dyes, though color may be more burgundy than bright red. Frosting Perfection: Beat cream cheese and butter until completely smooth before adding powdered sugar to prevent lumps – this takes 3-4 minutes. Make-Ahead Strategy: Cake layers can be wrapped and frozen up to 3 months, frosted cake keeps 3 days covered in refrigerator. Serving Temperature: Let cake come to room temperature 30 minutes before serving for best flavor and texture. Storage Secrets: Store covered in refrigerator due to cream cheese frosting, but bring to room temperature before serving for optimal taste.