Kue Beludru Merah

Bahan-bahan (10 porsi)

• 2 2/3 cups (400 g) plain cake flour ((Note 1))
• 2 tbsp (10 g) cocoa powder (, unsweetened)
• 1 tsp (5 g) baking soda / bi-carb soda (, NOT baking powder (Note 2))
• Pinch of salt
• 1/2 cup (115 g) unsalted butter (, softened (1 US stick))
• 1 1/2 cups (330 g) caster / superfine white sugar ((Note 3a))
• 2 eggs (, at room temperature (around 2 oz / 60g each))
• 1 cup (250ml) vegetable oil
• 1 tsp white vinegar
• 2 tsp vanilla extract ((or essence))
• 1 cup (250 ml) buttermilk (, at room temperature (Note 4))
• 2 1/2 tbsp red food colouring liquid ((UK: use Gel, Note 7))
• 14 oz (400 g) Philadelphia Cream Cheese, block (, softened but not too soft (UK see Note 9))
• 1/2 cup (115 g) unsalted butter (, softened (but not too soft))
• 1 1/2 tsp vanilla extract
• 4 cups (450 g) soft icing sugar / powdered sugar (sifted (Note 3b))