whole milk (115 grams) • vinegar or lemon juice + 5 grams vinegar or lemon juice (use twice, 5 grams each time) • unsalted butter (50 grams) • granulated sugar (80 grams) • salt • large egg • vanilla extract • cake flour (135 grams) • cocoa powder • red food coloring • baking soda • cream cheese, softened at room temperature for about 2 hours (150 grams) •