Dulce De Leche Tiramisu

Bahan-bahan (12 porsi)

• 6 egg yolks
• 3/4 cup granulated sugar
• 1 1/2 cups mascarpone (see notes)
• 1 1/2 cups heavy cream
• 1/4 cup + 2 tablespoons dulce de leche (I use this canned dulce de leche, which I buy at Target or Cub Foods)
• pinch of salt to taste
• two 4.4-ounce boxes of soft ladyfingers (I am very loyal to St. Michel soft ladyfingers – absolutely perfect with a little sugar crunch on top)
• 2 cups strong coffee or espresso (can be decaf but highly recommend that it is rich, dark, and strong)
• 1/2 cup cocoa powder
• chocolate bar for shaving / topping