Description

This Christmas Jello Poke Cake is a festive and colorful dessert featuring a soft white cake poked with holes and soaked in vibrant strawberry and lime gelatin mixtures. Topped with cool whipped topping and sprinkled with holiday sprinkles, this retro-inspired cake delivers moist, flavorful bites bursting with holiday cheer. Perfect for parties, it can be made ahead and chilled, offering a joyful combination of tart and sweet flavors with a fun, eye-catching presentation.

Ingredients

Scale

For the Cake:

1 box Duncan Hines white cake mix
3 eggs (room temperature)
1 cup whole milk
1/2 cup vegetable oil
1 teaspoon pure vanilla extract

For the Gelatin Soak:

1.5 oz strawberry gelatin
1.5 oz lime gelatin
1 cup boiling water
1/4 teaspoon salt (divided between mixes)

For the Topping:

8 oz whipped topping (thawed)
1/4 cup festive holiday sprinkles

Instructions

Prepare the Cake Batter and Bake: Preheat your oven to 350°F and grease a 9×13 inch baking pan. In a large mixing bowl, combine the Duncan Hines white cake mix, room temperature eggs, whole milk, vegetable oil, vanilla extract, and 1/4 teaspoon salt. Mix on medium speed for about 2 minutes until the batter is smooth and well combined. Pour the batter into the prepared pan and bake for 28-30 minutes, until a toothpick inserted in the center comes out clean and the cake is golden and springs back when lightly touched.
Cool and Pierce the Cake: Remove the cake from the oven and let it cool for 15-20 minutes at room temperature—warm enough for gelatin absorption but not hot to break down the cake. Using the handle of a wooden spoon or a drinking straw, poke holes about 1 inch apart over the entire surface in a systematic grid pattern, pressing straight down and pulling straight up about 3/4 deep without twisting to avoid tearing.
Prepare the Gelatin Mixtures: While the cake cools, dissolve the strawberry gelatin in 1/2 cup boiling water with half the salt, and the lime gelatin in the other 1/2 cup boiling water with the remaining salt, stirring each until fully dissolved and clear. Let both cool for 2-3 minutes so they are warm but not hot before pouring.
Pour Gelatin Over Cake and Chill: Visually divide the cake down the center (score with a toothpick or use parchment as a barrier). Pour the strawberry gelatin slowly and carefully over one half, targeting the holes, then after 60 seconds pour the lime gelatin over the other half, also targeting holes along the dividing line for color separation. Place in the refrigerator and chill for at least 2 hours until the gelatin is set and firm.
Finish with Topping and Garnish: Remove the chilled cake from the fridge and spread the thawed whipped topping evenly over the entire surface. Generously sprinkle festive holiday sprinkles on top just before serving to keep them bright and crunchy.

Notes

Use a wooden spoon handle or thick drinking straw for poking holes—avoid forks to prevent ragged holes.
Do not poke holes all the way through to the pan; keep them about 3/4 of cake depth.
Wait until the cake is slightly warm (15-20 mins after baking) before poking and pouring gelatin for best absorption without breaking the cake.
Pour gelatin mixtures slowly and patiently to prevent color bleeding and keep a clean red and green split.
The cake can be baked and soaked up to 2 days ahead; add whipped topping and sprinkles just before serving.
Store the finished cake covered loosely in the fridge and consume within 3 days for best texture.
The cake can be frozen un-topped up to 2 months; add whipped topping only after thawing.
Optional toppings include stabilized whipped cream, cream cheese frosting, mascarpone cloud, Greek yogurt whip, or cream cheese and cream hybrids for flavor variations.

Prep Time: 1 hour 5 minutes
Cook Time: 30 minutes
Category: Dessert
Method: Baking
Cuisine: American

Keywords: Christmas poke cake, Jello poke cake, strawberry lime gelatin cake, holiday dessert, festive cake, Duncan Hines white cake, gelatin soaked cake, whipped topping cake