Step 1

Preheat oven to 350 degrees F and oil a 13x9-inch pan.

Step 2

Add cake mix to a large bowl and make a well in the center. Add eggs, water and vegetable oil to the well, and mix until well combined with a handheld mixer. Pour batter into the prepared pan.

Step 3

In another bowl, add lemon pudding, water, and milk, and mix until well combined. Drop spoonfuls of the pudding mixture onto the cake batter, making sure to cover evenly. Using a spatula, spread out the lemon pudding.

Step 4

Bake for 55-60 minutes. Remove from oven and let cool for 5 minutes. Sprinkle with powdered sugar and serve immediately. Refrigerate leftovers.