01 -
Preheat the oven to 350°F (175°C). Lightly coat the bottom of a 10-inch springform pan with cooking spray.
02 -
Set aside 1 cup of the cake mix for the crumb topping. Place the remaining cake mix in a large bowl. Add ¾ cup plus 1 tablespoon of milk, the vegetable oil, and the eggs. Use an electric mixer to beat the mixture until thoroughly combined, about 2 minutes. Pour the batter into the prepared pan.
03 -
In a separate bowl, whisk together the melted butter and vanilla extract. Stir in the reserved 1 cup of cake mix until it forms a crumbly texture. Sprinkle this crumb mixture evenly over the cake batter.
04 -
Bake the cake in the preheated oven for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean. Allow the cake to cool in the pan until it reaches room temperature.
05 -
Beat the cream cheese, ⅓ cup of confectioners' sugar, lemon juice, and lemon zest in a bowl until smooth and creamy. In a separate bowl, whip the heavy cream with the remaining ⅓ cup of confectioners' sugar using an electric mixer until stiff peaks form. Gently fold the cream cheese mixture into the whipped cream.
06 -
Carefully remove the cake from the springform pan. Using a serrated knife, slice the cake horizontally into two layers. Spread the cream filling evenly over the bottom layer, then place the top layer over the filling.
07 -
Refrigerate the cake for at least 4 hours. Before serving, dust the top of the cake with additional confectioners' sugar.