The first slice of this cake shows why the little wooden-spoon holes matter: cherry and lime gelatin run down through a soft white crumb, leaving bright stripes in every piece. Christmas Jello Poke Cake has the familiar look of a holiday dessert, but the part that takes attention is getting those colors into the cake without flooding the top.
I use a simple butter cake for the base, and the egg whites keep its crumb pale so the red and green show clearly. Alternating the flour mixture with the milk also keeps the batter tender; once the flour goes in, I mix only until it disappears.
After the gelatin sets, a layer of thawed whipped topping covers the surface and makes clean slices easy to serve. The finished cake is cool, soft, and striped all the way through.
Kitchen Note
Keep the cherry and lime gelatin in separate bowls while you dissolve them. I stir until there are no visible grains left; undissolved gelatin can leave specks in the colored stripes.
Save Christmas Jello Poke Cake for a cheerful make-ahead dessert with red-and-green stripes and a soft whipped topping.
Why Egg Whites Make the Christmas Colors Stand Out
A yellow cake can still taste lovely under gelatin, but its golden crumb makes red and green stripes look less vivid. This cake uses egg whites rather than whole eggs, which gives the base a paler color and lets the cherry and lime show through each slice. The effect comes from the cake itself, not from adding food coloring.
The egg whites also need to be incorporated one at a time after the butter and sugar are creamed. That gives the mixture time to take them in evenly instead of leaving the batter looking split. Room-temperature whites blend more smoothly into the softened butter mixture than cold ones, so set them out while you prepare the other ingredients. With a pale, even crumb, the two gelatin colors read clearly without changing the simple vanilla flavor of the cake.
What Keeps the Cake Tender and the Stripes Bright
- All-purpose flour — It gives the cake enough structure to hold the gelatin without turning heavy. Whisk it with the baking powder and salt first so the leavening is distributed before it reaches the batter.
- Unsalted butter and granulated sugar — Softened butter creams into the sugar and creates the base for a fine, tender crumb. The mixture should turn pale and fluffy before the egg whites go in; butter straight from the refrigerator won’t cream properly.
- Whole milk — Milk adds moisture and keeps the flour mixture from making a stiff batter. Room-temperature milk blends more evenly, and alternating it with the dry mixture helps avoid overworking the flour.
- Cherry and lime gelatin — These provide the cake’s signature red-and-green color as well as the sweet, fruity pockets. Keeping each flavor separate gives you two distinct colors rather than one mixed hue.
- Frozen whipped topping — Thawed topping spreads smoothly over the chilled cake and gives each slice a light finish. Thaw it before spreading so you don’t have to press hard against the set gelatin.
Build the Cake Without Overmixing the Batter
Cream the Butter and Sugar Until Fluffy
Heat the oven to 350°F and grease a 9×13-inch baking pan. Whisk the flour, baking powder, and salt in a medium bowl. In a large bowl, beat the softened butter on medium speed until creamy, then add the sugar gradually and beat for 3 to 4 minutes, until pale and fluffy. If the butter still looks dense, give it time; this stage helps the cake bake up with an even crumb.
Add the Whites, Then Alternate the Dry Ingredients and Milk
Beat in the egg whites one at a time, followed by the vanilla, scraping down the bowl as needed. With the mixer on low, add the flour mixture in three additions, alternating with the milk in two additions, and begin and end with flour. Stop mixing as soon as the batter is combined; beating after the flour disappears can make the cake less tender. Spread the batter evenly in the prepared pan.
Bake Until the Center Springs Back
Bake for 30 to 35 minutes. The top should spring back lightly when touched, and a toothpick inserted in the center should come out clean or with a few moist crumbs. A toothpick coated in wet batter means the middle needs more time, so check again rather than moving on to the gelatin while the cake is underbaked. Let the cake cool in the pan for 10 minutes.
Fill the Holes and Chill Before Topping
Use the handle of a wooden spoon to poke 40 to 50 holes about 1 inch apart, reaching nearly to the bottom. Stir the cherry gelatin into 1 cup of boiling water in a heatproof bowl, and dissolve the lime gelatin in the remaining 1 cup of boiling water in a separate bowl. Slowly spoon cherry into every other hole and lime into the remaining holes, using all of both mixtures. Refrigerate the cake uncovered for at least 3 hours, until the gelatin is set and the cake is thoroughly chilled, then spread the thawed whipped topping evenly over it.
Two Easy Ways to Adapt the Colors or Make It Dairy-Free
Make It a Single-Color Cake
Use two boxes of the same flavor of gelatin instead of cherry and lime, dissolving each in its own portion of boiling water as you would here. The flavor stays consistent throughout, and the cake takes on one bright color rather than alternating red and green stripes.
Use Dairy-Free Baking Swaps
For a dairy-free version, use plant-based butter in place of the butter, unsweetened oat milk instead of whole milk, and a dairy-free frozen whipped topping. The cake will have a slightly different crumb, but the gelatin still sets into the holes and the topping gives it the same cool finish.
Storage and Serving
- Refrigerator: Keep the covered cake refrigerated and enjoy it within 3 days. The topping may soften a little as it sits.
- Freezer: Freezing the assembled cake isn’t recommended; the gelatin and whipped topping can turn watery or lose their smooth texture as they thaw.
- Serving: Serve chilled. Reheating isn’t needed and would soften the gelatin and topping.
Questions That Come Up When Making Christmas Jello Poke Cake
Christmas Jello Poke Cake
Ingredients
Equipment
Method
- Preheat the oven to 350°F.
- Grease a 9x13-inch baking pan.
- Whisk the all-purpose flour, baking powder, and salt together in a medium bowl.
- Beat the softened unsalted butter with an electric mixer on medium speed until creamy, about 1 minute; gradually beat in the granulated sugar and continue for 3 to 4 minutes, until pale and fluffy.
- Beat in the egg whites one at a time, then beat in the vanilla extract, scraping down the bowl as needed.
- With the mixer on low, add the flour mixture in three additions, alternating with the whole milk in two additions, beginning and ending with the flour mixture; mix just until combined.
- Spread the batter in the prepared pan.
- Bake for 30 to 35 minutes, until the top springs back lightly and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Cool the cake in the pan for 10 minutes.
- Poke 40 to 50 holes about 1 inch apart, reaching nearly to the bottom, with the handle of a wooden spoon.
- In a heatproof bowl, stir the cherry gelatin into 1 cup of the boiling water until fully dissolved.
- In a separate heatproof bowl, stir the lime gelatin into the remaining 1 cup of boiling water until fully dissolved.
- Slowly spoon the cherry gelatin into every other hole and the lime gelatin into the remaining holes, using all of both mixtures.
- Refrigerate the cake uncovered for at least 3 hours, until the gelatin is set and the cake is thoroughly chilled.
- Spread the thawed whipped topping evenly over the chilled cake.
