Ingredients

  • 1 stick butter plus 1 tablespoon for greasing the pan
  • 1 1/2 cups granulated sugar
  • 2 1/2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1 cup plain, whole milk yogurt
  • 3 eggs
  • 1 tablespoon lemon zest
  • 1 tablespoon lemon juice
  • 1/2 teaspoon pure vanilla extract
  • 1/2 cup water
  • 1/4 cup granulated sugar
  • Juice of 1/2 lemon and a few grates of zest
  • 2 to 3 grates whole nutmeg
  • 1/4 teaspoon ground cinnamon
  • 1 1/2 cups heavy cream
  • 9 ounces semisweet chocolate chips
  • 1 cup confectioners' sugar
  • 1 stick unsalted butter, cut into pieces
  • 1 teaspoon almond extract

Method

  • Preheat the oven to 350 degrees F. Grease a 9-inch square cake pan with 1 tablespoon of the butter.
  • For the cake: In the bowl of an electric mixer fitted with a whisk attachment (or an electric hand mixer, or by hand), cream the 1 stick of butter and granulated sugar together until smooth, 5 to 8 minutes.
  • As you are creaming the butter and sugar, scrape the sides down with a rubber spatula so you are sure to be combining the butter and sugar as it mixes.
  • In a separate bowl, sift together the flour, baking soda, and salt.
  • Set aside.
  • When the butter and sugar are integrated, blend in the yogurt.
  • Add the eggs, one by one.
  • Add the lemon zest, lemon juice, and vanilla.
  • Remove the bowl from the mixer and fold in the dry ingredients.
  • Transfer the batter to the prepared pan and bake, undisturbed, until a toothpick inserted into the center of the cake comes out clean, 40 to 45 minutes.
  • Allow the cake to cool for 10 minutes before inverting it on to a plate and allowing it to cool for an additional 20 minutes.
  • For the frosting: In a small saucepan, combine the water and granulated sugar and bring to a simmer.
  • Stir to make sure all of the sugar has dissolved.
  • Remove from the heat and transfer to a bowl to cool.
  • Stir in the lemon zest, lemon juice, nutmeg, and cinnamon.
  • Stir to blend.
  • Set the syrup aside to cool.
  • In a small saucepan, heat the cream.
  • Place the chocolate chips in a medium bowl.
  • When the cream simmers, pour it over the chocolate chips.
  • Whisk to blend.
  • Set aside to cool.
  • In the bowl of the food processor, combine the confectioners' sugar, butter, and almond extract.
  • Pulse to blend.
  • Continue blending for about 30 seconds until the ingredients are mixed together.
  • Use a rubber spatula to scrape every bit of the chocolate mixture into the processor and mix again to blend.
  • Transfer the frosting to a bowl and allow it to sit a little before frosting the cake.
  • Transfer cake to a serving platter.
  • Use a pastry brush (or spoon) to put some of the syrup on the cake.
  • Do not make too wet or the cake will be soggy and fall apart, use just a little bit here and there.
  • Carefully spread the frosting over the cake starting in the center and working it to and around the edges.
  • Make sure there is enough frosting to coat the top and sides of the cake.
  • Serve.