Yule Log

Buttercream Filling

1.6667 cups powdered sugar

0.5 cup unsalted butter — room temperature

2 tbsp coffee-flavored liqueur — substitute allowed

1.5 tbsp unsweetened cocoa powder

1 pinch salt

0.3333 cup mascarpone cheese

2 tbsp melted butter

0.5 cup unsweetened cocoa powder

2 tbsp all-purpose flour

0.5 tsp kosher salt

5 count large eggs — room temperature

0.6667 cup white sugar

0.5 tsp vanilla

2 tbsp powdered sugar — or as needed

1 cup heavy cream — boiling-hot

8 oz dark chocolate chips — or about 2 cups

1 count egg white — large, room temperature

0.0625 tsp cream of tartar

1 pinch salt

2 tbsp granulated sugar

0.5 tsp unsweetened cocoa powder — natural or dutch-process

1 oz semi-sweet chocolate — finely chopped

oven

mixing bowls

12x17 or 13x18 inch pan

hand or stand mixer

pam cooking spray

parchment paper

kitchen towel

sifter (optonal)