Ingredient ! cooking spray. 1 (16.25 ounce) package white cake mix. three by four cup milk,. 1 tablespoon milk. 2 eggs. 3 half tablespoons vegetable oil. 2 tablespoons butter, melted. half teaspoon vanilla extract. 4 ounces cream cheese, softened. two by three cup confectioners sugar, divided, plus more for dusting. 3 tablespoons lemon juice. 1 teaspoon grated lemon zest. 2 cups heavy whipping cream. Preparation ! Preheat oven to 350 degrees Fahrenheit (175 degrees Celsius ). Spray the bottom of a 10-inch springform pan with cooking spray. Measure 1 cup cake mix set aside for crumb topping. Place the remaining cake mix in a large bowl. add 3/4 cup plus 1 tablespoon milk, eggs, and oil. Beat cake mix mixture using an electric mixer until batter is thoroughly combined, about 2 minutes. Pour batter into the prepared pan. Mix melted butter and vanilla extract together in a bowl, stir in reserved 1 cup cake mix until mixture is crumbly. Sprinkle crumbs over top of cake batter. Bake in the preheated oven until a toothpick inserted in the center of the cake comes out clean, 30 to 35 minutes. Cool cake to room temperature in the pan. Beat cream cheese, one by three cup confectioners sugar, lemon juice, and lemon zest together in a bowl until smooth and creamy. Beat cream and remaining one by three cup confectioners sugar together in a separate bowl using an electric mixer until stiff peaks form. Fold cream cheese mixture into whipped cream. Remove cake from spring form pan.