Lime Jello Poke Cake is a moist, fluffy, and light cake that’s perfect for St. Patrick’s Day or any spring celebration. This easy-to-make dessert uses a white cake mix as the base, and a tangy lime Jell-O filling plus creamy frosting and green sprinkles give it a festive finish.

If you enjoy poke cakes, you’ll love how simple and satisfying this one is. It’s fun to make, easy to adapt, and ideal for gatherings—St. Paddy’s Day, Easter, birthdays, or any time you want a bright, citrusy dessert. The “poke” technique creates channels for the lime-flavored filling to seep into the cake, giving every bite a burst of citrus.
Why This Recipe Works
- Easy: This recipe is straightforward and kid-friendly—little helpers often enjoy poking the holes in the cake.
- Simple: A boxed white cake mix forms the base, with only a few additional ingredients needed to create the filling and frosting.
- Versatile: You can swap flavors—use lemon cake mix, a different Jell-O flavor, or change the frosting to suit your event.
- Make-ahead friendly: The cake can be assembled a day ahead. Keep it covered in the refrigerator and add the frosting and sprinkles just before serving to preserve texture.
Ingredients

- White cake mix (plus the ingredients listed on the box: water, oil, egg whites)
- 3 oz box lime Jell-O gelatin mix
- 3 oz box white chocolate instant pudding mix (unprepared)
- 2 cups water (1 cup hot, 1 cup cold to prepare the Jell-O)
- 8 oz tub whipped topping, thawed
- Green sprinkles for decorating
How To Make Lime Poke Cake
Follow these simple steps to build a bright and creamy poke cake with plenty of lime flavor.

- Preheat and prepare: Preheat the oven to 350°F (180°C). Lightly spray a 9×13-inch baking pan.
- Bake: Make the white cake according to package directions in the prepared 9×13 pan. Let the cake cool completely.
- Poke the cake: Use a fork or wooden skewer to poke holes evenly across the top of the cooled cake so the filling can soak in.
- Prepare the Jell-O: In a medium saucepan, heat 1 cup of water until warm. Remove from heat, whisk in the lime Jell-O mix to dissolve, then stir in 1 cup of cold water. Let it cool slightly but remain pourable.
- Fill the cake: Slowly pour the Jell-O mixture over the cake, allowing it to sink into the holes and fully saturate the cake.
- Chill: Cover the pan and refrigerate for at least 4 hours, or preferably overnight, so the Jell-O sets and the flavors meld.
- Make the frosting: In a large bowl, combine the thawed whipped topping with the unprepared white chocolate instant pudding mix. Stir until smooth and uniform.
- Decorate: Spread the frosting evenly over the chilled cake. Finish with green sprinkles or other decorations of your choice.

Recipe Tips
- Yield: Serves 12 to 16. Because the cake is sweet and rich, smaller slices are often preferred.
- Swap the cake mix: Use lemon cake mix to make a lemon-lime version, or bake a homemade sheet cake if you prefer. A light-colored cake shows the lime filling best.
- Alternate frosting: If you want a richer finish, use buttercream or cream cheese frosting instead of whipped topping.
- Pudding options: Vanilla instant pudding or a small amount of sweetened condensed milk can replace the white chocolate pudding mix.
- Change the Jell-O: For birthdays or themed events, select a different Jell-O flavor to match your color scheme.
- Fresh additions: Garnish with thin lime slices, fresh berries, or other fruit for color and texture contrast.
- Key lime variation: Add fresh key lime juice to the whipped topping and cake batter for a tangier key lime cake.
- Coloring: If desired, add a few drops of food coloring to the frosting to better match your celebration’s theme.

FAQs
How should I store this cake?
Keep the cake covered and refrigerated. For best texture, store for up to two days—beyond that the cake can become soggy. Add the frosting and sprinkles shortly before serving if you plan to assemble ahead.
Can I make poke cupcakes?
Yes. Bake cupcakes using the same batter, cool, poke holes in each cupcake, pour a proportionate amount of prepared Jell-O into the holes, chill, and top with the pudding-whipped frosting and sprinkles.
Recipe Summary
Prep time: about 25 minutes (active prep)
Cook time: about 30 minutes
Chill time: at least 4 hours, preferably overnight
Servings: 12
This Lime Jello Poke Cake is a crowd-pleasing, colorful dessert that’s quick to assemble and easy to adapt for holidays and celebrations. With a tender white cake base, bright lime filling, and creamy frosting, it’s a refreshing and festive treat.
Ingredients (Condensed)
- 1 (15.25 oz) box white cake mix + ingredients listed on box
- 1 (3 oz) box lime Jell-O gelatin mix
- 2 cups water (1 cup hot, 1 cup cold)
- 1 (3 oz) box white chocolate instant pudding, unprepared
- 1 (8 oz) tub whipped topping, thawed
- Green sprinkles, for garnish
Instructions (Condensed)
- Bake cake in a greased 9×13 pan at 350°F (180°C) per package directions; cool completely.
- Poke holes all over the cooled cake.
- Prepare Jell-O with 1 cup hot water and 1 cup cold water; pour over cake, letting it soak into the holes.
- Cover and refrigerate at least 4 hours or overnight.
- Stir whipped topping and pudding mix until smooth; spread over the chilled cake.
- Decorate with green sprinkles and serve chilled.