S'mores Poke Cake

Directions

1. 1Preheat oven to 350 degrees F (325 degrees F for dark/nonstick pan). Lightly grease and flour the bottom only of a 13-by-9-inch baking dish and set aside.
2. 2In a large bowl, combine cake mix, water, oil and eggs. Using the paddle attachment of a stand mixer or an electric hand mixer, beat on low speed 30 seconds, then increase speed to medium and beat for 2 minutes.
3. 3Pour batter in prepared baking dish and bake 25 to 35 minutes, or until a toothpick inserted in the center comes out clean. Remove cake from oven and let cool 15 minutes.
4. 4Meanwhile, make the marshmallow topping: In a small saucepan over medium heat, melt marshmallows and milk, stirring often, until smooth. Remove from heat and stir in lemon juice and vanilla.
5. 5Using the handle of a wooden spoon or spatula, poke holes in cake about every 1/2 inch. Pour marshmallow topping evenly over cake. Cover tightly with plastic wrap and chill 2 hours in refrigerator to set.
6. 6Remove plastic wrap from fully set cake and frost top with whipped topping. Sprinkle with Nature Valley granola bar crumbs and serve.