Moist Vanilla Jello Poke Cake

If you ask me, poke cakes are one of the easiest ways to make a dessert that looks like you spent all day in the kitchen.

This vanilla poke cake starts with a simple white cake that gets poked all over and soaked with strawberry gelatin. The result is a moist cake with pretty pockets of pink throughout.

It’s topped with a creamy vanilla pudding layer that’s mixed with whipped topping for an airy, cloud-like frosting. Cold milk in the pudding is key here—it helps everything set up just right in the fridge.

It’s a potluck favorite that comes together in less than an hour, perfect for when you need something sweet without all the fuss.

What Kind of Cake Mix Should I Use?

For this poke cake, any standard white cake mix from your grocery store will work perfectly. You can go with a name brand like Betty Crocker or Duncan Hines, or save some money with a store brand – they all bake up pretty much the same. If you want to make it a bit healthier, there are sugar-free white cake mix options available that work just as well. Just make sure you have all the ingredients listed on the back of the box (usually eggs, oil, and water) since you’ll need those in addition to the mix itself.

Options for Substitutions

This poke cake is pretty forgiving when it comes to swaps, so here are some options if you need to make changes:

• White cake mix: You can use yellow cake mix or even vanilla cake mix instead. They’ll all work the same way, just giving you a slightly different flavor and color.
• Sugar-free jello: Regular strawberry jello works perfectly fine here. You can also try other flavors like raspberry, cherry, or even lime for a fun twist. Just stick with the same size box.
• Sugar-free vanilla pudding: Regular instant vanilla pudding is a great substitute. You can also experiment with other pudding flavors like cheesecake or white chocolate if you want to mix things up.
• Cool Whip: Homemade whipped cream works well too – you’ll need about 2 cups of heavy cream whipped with 2-3 tablespoons of sugar. Just keep in mind homemade whipped cream doesn’t hold up quite as long as Cool Whip.
• Milk: Any milk works here – whole, 2%, skim, or even almond milk. Just note that lower fat milks might make the pudding layer slightly less thick.

Watch Out for These Mistakes While Baking

The biggest mistake people make with poke cakes is not poking enough holes or making them too shallow – you want to poke all the way to the bottom of the cake using a wooden spoon handle or straw, spacing the holes about an inch apart so the Jell-O can really seep in.

Another common error is pouring the Jell-O mixture over the cake while it’s still hot, which can make the cake soggy and cause the gelatin to not set properly – always let your cake cool completely and chill it first.

Don’t rush the chilling time between layers either, as the Jell-O needs at least 3-4 hours to fully set before you add the pudding layer, otherwise everything will blend together into a messy swirl.

Finally, make sure your pudding has thickened to a spreadable consistency before adding it to the cake, and use a gentle hand when spreading it so you don’t disturb the Jell-O layer underneath.

What to Serve With Vanilla Jello Poke Cake?

This cake is pretty sweet and rich on its own, so I like to keep things simple when serving it. A hot cup of coffee or cold glass of milk is really all you need to balance out the sweetness and make it feel like a complete dessert. If you’re serving this at a party or barbecue, it pairs nicely with fresh strawberries or mixed berries on the side, which add a fresh pop without competing with the cake. You could also set out some vanilla ice cream for anyone who wants to go all out with their dessert.

Storage Instructions

Store: Keep your poke cake covered tightly with plastic wrap or aluminum foil in the fridge for up to 4 days. Since it has pudding and Cool Whip on top, it really needs to stay cold to maintain that creamy texture.

Serve: This cake is best served straight from the fridge, nice and cold. The jello stays firm and the topping stays fluffy when it’s chilled. Just slice and enjoy – no reheating needed for this one!

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 1700-1850
• Protein: 20-26 g
• Fat: 25-35 g
• Carbohydrates: 360-400 g

Ingredients

For the cake base:

• 15.25 oz white cake mix (I always use Betty Crocker Super Moist)
• 1.25 cups water

For the gelatin soak:

• 0.3 oz strawberry gelatin (I use Jell-O brand for consistent color)
• 1 cup boiling water
• 1/2 cup cold water

For the topping:

• 1 oz instant vanilla pudding
• 2 cups milk (cold, straight from the fridge for proper thickening)
• 1 teaspoon pure vanilla extract
• 1 pinch salt
• 8 oz whipped topping (thawed completely in the fridge for a smooth texture)

Step 1: Bake the Cake Base

• 15.25 oz white cake mix
• 1.25 cups water

Preheat your oven according to the cake mix box directions.

Prepare a 9×13 inch baking dish with cooking spray or parchment paper.

Combine the white cake mix with 1.25 cups water in a large bowl and mix until just combined—don’t overmix, as this keeps the cake tender.

Pour the batter into the prepared dish and bake according to box directions until a toothpick inserted in the center comes out clean.

Remove from oven and let cool for about 15 minutes before proceeding to the next step.

Step 2: Prepare the Gelatin and Pierce the Cake

• 0.3 oz strawberry gelatin
• 1 cup boiling water
• 1/2 cup cold water

While the cake cools slightly, prepare the strawberry gelatin by dissolving it in 1 cup of boiling water, stirring for about 2 minutes until completely dissolved.

Add 1/2 cup cold water to the gelatin mixture and stir well.

Once the cake has cooled for about 15 minutes, use a fork or spoon handle to poke holes all over the surface of the cake—aim for dense coverage so the gelatin can seep deeply into the cake and flavor every bite.

I like to poke holes in a crosshatch pattern, which ensures even distribution of the jello throughout the cake.

Step 3: Soak the Cake with Gelatin

• strawberry gelatin mixture from Step 2

Carefully pour the cooled gelatin mixture over the entire surface of the cake, pouring slowly so it can absorb into the holes you’ve created rather than pooling on top.

Make sure to distribute it evenly across all areas.

Place the cake in the refrigerator for 3-4 hours, allowing the gelatin to set completely and fully hydrate the cake.

Step 4: Prepare the Vanilla Pudding Layer

• 1 oz instant vanilla pudding
• 2 cups cold milk
• 1 teaspoon pure vanilla extract
• 1 pinch salt

About 30 minutes before you’re ready to assemble, remove the cold milk directly from the refrigerator.

In a medium bowl, whisk together the instant vanilla pudding mix with the cold milk, stirring constantly for about 2 minutes until the pudding reaches a thick, spreadable consistency.

Stir in the pure vanilla extract and a pinch of salt—the salt enhances the vanilla flavor and adds depth to the pudding layer.

I find that using pudding straight from the mix rather than the pre-made version gives you better control over the texture and allows you to customize the vanilla flavor.

Step 5: Layer and Finish the Cake

• vanilla pudding mixture from Step 4
• 8 oz whipped topping

Remove the cake from the refrigerator and spread the vanilla pudding mixture from Step 4 evenly over the entire top using a spatula, working gently so you don’t disturb the set gelatin layer beneath.

Top the pudding with the thawed whipped topping, spreading it in a smooth, even layer that covers the pudding completely.

Chill the finished cake for at least 1-2 hours before serving so all the layers set together, creating clean slices with distinct layers of cake, gelatin, pudding, and whipped topping.

Moist Vanilla Jello Poke Cake

Delicious Moist Vanilla Jello Poke Cake recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 1 hour hr 20 minutes mins

Cook Time 2 hours hrs 40 minutes mins

Total Time 4 hours hrs

Servings: 16 slices

Calories: 1775

Ingredients Method

Ingredients

  

For the cake base

• 15.25 oz white cake mix (I always use Betty Crocker Super Moist)
• 1.25 cups water

For the gelatin soak

• 0.3 oz strawberry gelatin (I use Jell-O brand for consistent color)
• 1 cup boiling water
• 1/2 cup cold water

For the topping

• 1 oz instant vanilla pudding
• 2 cups milk (cold, straight from the fridge for proper thickening)
• 1 teaspoon pure vanilla extract
• 1 pinch salt
• 8 oz whipped topping (thawed completely in the fridge for a smooth texture)

Method

 

1. Preheat your oven according to the cake mix box directions. Prepare a 9x13 inch baking dish with cooking spray or parchment paper. Combine the white cake mix with 1.25 cups water in a large bowl and mix until just combined—don't overmix, as this keeps the cake tender. Pour the batter into the prepared dish and bake according to box directions until a toothpick inserted in the center comes out clean. Remove from oven and let cool for about 15 minutes before proceeding to the next step.
2. While the cake cools slightly, prepare the strawberry gelatin by dissolving it in 1 cup of boiling water, stirring for about 2 minutes until completely dissolved. Add 1/2 cup cold water to the gelatin mixture and stir well. Once the cake has cooled for about 15 minutes, use a fork or spoon handle to poke holes all over the surface of the cake—aim for dense coverage so the gelatin can seep deeply into the cake and flavor every bite. I like to poke holes in a crosshatch pattern, which ensures even distribution of the jello throughout the cake.
3. Carefully pour the cooled gelatin mixture over the entire surface of the cake, pouring slowly so it can absorb into the holes you've created rather than pooling on top. Make sure to distribute it evenly across all areas. Place the cake in the refrigerator for 3-4 hours, allowing the gelatin to set completely and fully hydrate the cake.
4. About 30 minutes before you're ready to assemble, remove the cold milk directly from the refrigerator. In a medium bowl, whisk together the instant vanilla pudding mix with the cold milk, stirring constantly for about 2 minutes until the pudding reaches a thick, spreadable consistency. Stir in the pure vanilla extract and a pinch of salt—the salt enhances the vanilla flavor and adds depth to the pudding layer. I find that using pudding straight from the mix rather than the pre-made version gives you better control over the texture and allows you to customize the vanilla flavor.
5. Remove the cake from the refrigerator and spread the vanilla pudding mixture from Step 4 evenly over the entire top using a spatula, working gently so you don't disturb the set gelatin layer beneath. Top the pudding with the thawed whipped topping, spreading it in a smooth, even layer that covers the pudding completely. Chill the finished cake for at least 1-2 hours before serving so all the layers set together, creating clean slices with distinct layers of cake, gelatin, pudding, and whipped topping.