INGREDIENTS
8 tbsp
unsalted butter, melted, plus more for greasing pan
1 cup
sugar
1/4 cup
unsweetened cocoa powder
1/2 tsp
vanilla extract
1 tbsp
red food coloring
1/8 tsp
salt
1/2 tsp
white vinegar
2
eggs
3/4 cup
all-purpose flour
1 8 ounce package
cream cheese, softened
3 tbsp
sugar
1/2 tsp
vanilla extract
1
large egg yolk