Creating your Orange Creamsicle Poke Cake is easy with these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan.
2. Prepare the Cake Batter: In a large mixing bowl, combine the yellow cake mix, eggs, water, and vegetable oil. Mix according to the package instructions until the batter is smooth.
3. Bake the Cake: Pour the batter into the prepared baking pan and bake for 30-35 minutes or until a toothpick inserted into the center comes out clean.
4. Cool the Cake: Allow the cake to cool in the pan for about 10 minutes. Then transfer it to a wire rack to cool completely for about an hour.
5. Prepare the Jell-O: In a small mixing bowl, dissolve the orange Jell-O in 1 cup of boiling water. Stir until completely dissolved, then add in 1/2 cup of cold water. Set aside.
6. Poke the Cake: Once the cake is cool, use a fork to poke holes throughout the entire surface of the cake. Make sure the holes are evenly spaced.
7. Pour Jell-O Mixture: Carefully pour the orange Jell-O mixture over the poked cake, ensuring the liquid seeps into the holes.
8. Refrigerate: Cover the cake with plastic wrap and refrigerate for at least 1 hour to allow the Jell-O to set.
9. Make the Cream Topping: In a separate bowl, mix the sweetened condensed milk, whipped topping, and vanilla extract until well combined.
10. Frost the Cake: After chilling, spread the cream mixture evenly over the cake.
11. Garnish (Optional): If desired, sprinkle grated orange zest on top for added color and flavor.
12. Serve: Slice and enjoy your refreshing Orange Creamsicle Poke Cake with family and friends!