Tiramisu Cake
adapted from
smitten kitchen
For the cake layers: 2 cups cake flour
2 teaspoons baking powder
1/8 teaspoon baking soda
1/4 teaspoon salt
10 tablespoons unsalted butter, room temperature
1 cup sugar
3 large eggs
1 large egg yolk
1 1/2 teaspoons pure vanilla extract
3/4 cup buttermilk
For the espresso extract: 8 tablespoons instant coffee powder
1 cup boiling water
For the espresso syrup: 1 1/2 cup water
1 cup sugar
3 tablespoons Kahlua
For the filling and frosting:16 oz cream cheese, room temperature
1/2 cup confectioners’ sugar, sifted
1 1/2 teaspoons (8 ml) pure vanilla extract
1 tablespoon Kahlua
1 cup cold heavy cream
1/2 cup semi-sweet mini chocolate chips
Chocolate-covered espresso beans, for decoration (optional)
Cocoa powder, for dusting
Cake:
- Center a rack in the oven and preheat the oven to 350
- Butter two 9×2 inch round cake pans, dust the insides with flour, and tap out the excess.
- Sift together the cake flour, baking powder, baking soda, and salt.
- Beat the butter on medium speed until soft and creamy. Add the sugar and beat for another 3 minutes.
- Add the eggs one by one, and then the yolk, beating for 1 minute after each addition.
- Beat in the vanilla; don’t be concerned if the mixture looks curdled.
- Reduce the mixer speed to low and add the dry ingredients alternately with the buttermilk, adding the dry ingredients in 3 additions and the milk in 2 (begin and end with the dry ingredients); scrape down the sides of the bowl as needed and mix only until the ingredients disappear into the batter.
- Divide the batter evenly between the two pans and smooth the tops with a rubber spatula.
- Bake for 28 to 30 minutes, rotating the pans at the midway point.
- Transfer the cakes to a rack and cool.
To make the extract:
- Stir the espresso powder and boiling water together in a small cup until blended. Set aside.
To make the syrup:
- Stir the water and sugar together in a small saucepan and bring just to a boil.
- Pour the syrup into a small heatproof bowl and stir in 5 oz of the espresso extract and the liqueur or brandy; set aside.
- Once cakes have cooled, soak cakes with syrup, dividing it evenly.
To make the filling and frosting:
- Whip the cream cheese until light and fluffy.
- Add powdered sugar, vanilla, remaining espresso extract, liqueur and cream; whip until light and fluffy.
- Put frosting into fridge to stiffen.
To assemble the cake:
- If the tops of the cake layers have crowned, use a long serrated knife and a gentle sawing motion to even them.
- Smooth some of the frosting over the layer and gently press the chocolate chips into the filling.
- Put the second cake layer upside down on top of the chocolate chips.
- With a long metal icing spatula, smooth the frosting around the sides of the cake and over the top.
- If you want to decorate the cake with chocolate-covered espresso beans, press them into the filling, making concentric circles of beans or just putting some beans in the center of the cake.
- Refrigerate the cake for at least 3 hours (or for up to 1 day) before serving – the elements need time to meld.
- Just before serving, dust the top of the cake with cocoa.
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