Warm Lemon Pudding Cake

Warm Lemon Pudding Cake. The name really says it all. Made with lemon pudding, this comes out of the oven so warm and oozing with pudding. Sort of like a molten lava cake.
Ingredients
1 pkg yellow cake mix (I used Betty Crocker, get the kind that makes a 9x13 size)
Ingredients called for on back of cake box
2 pkg (3.4oz each) instant lemon pudding
1/3 c. sugar
2 c. cold milk
1 1/4 c. water
2 Tbsp. powdered sugar (for dusting)
Source Link: http://mandysrecipebox.blogspot.com/2012/01/warm-lemon-pudding-cake.html