If you're looking for an easy 4th of July dessert that feeds a crowd and looks incredible, this Red White and Blue Poke Cake is exactly what you need.

This patriotic poke cake starts with a simple white cake mix, gets soaked with bright raspberry and berry blue Jello for those signature colorful stripes, and is topped with fluffy whipped cream and festive sprinkles. The best part? You can make it the day before your party, so there's one less thing to stress about on the actual day.
It's a total crowd-pleaser that works perfectly for backyard BBQs, potlucks, or any Independence Day celebration. Kids love the fun colors inside, and adults appreciate how easy it is to throw together.
If you're planning a full patriotic menu? Try out my 4th of July Caprese Salad and my Mini Trifle (4th of July Trifles).
Quick Answer
Red White and Blue Poke Cake is a festive 4th of July dessert made by poking holes in white cake and soaking it with raspberry and berry blue Jello for patriotic stripes.
- Prep: 15 minutes active, 3+ hours chill time
- Texture: Soft, moist cake with pockets of fruity Jello
- Perfect for: Potlucks, BBQs, Independence Day parties
- Method: Bake boxed cake, poke holes, pour Jello, chill, top with whipped cream
This make-ahead dessert feeds a crowd and looks impressive with minimal effort. The colorful stripes inside are a fun surprise when you slice it!
Jump to:
The ingredients

White Cake Mix: Make sure it's the 15.25 oz size. Pillsbury, Betty Crocker, or Duncan Hines all work well.
Cool Whip: If you want a homemade touch, you can substitute it with stabilized whipped cream.
Jello Flavors: Cherry and Berry Blue are the classic pair, but feel free to use strawberry or watermelon for a fun twist.
Sprinkles: Add just before serving so they don't bleed into the whipped topping.
See Recipe card below for quantities
Step-by-Step Instructions for the Red white and Blue Poke Cake
1. Bake the cake.
Prepare and bake the white cake mix in a 9x13 pan according to the package instructions. Let it cool for about 20 minutes.
2. Poke holes.
Once the cake has cooled slightly, use the end of a wooden spoon or a fork to poke holes all over the cake. You want to go about ยพ of the way down but not all the way to the bottom.


3. Mix Jello colors.
In separate bowls, mix each Jello packet with ยฝ cup boiling water. Stir until dissolved. Add ยผ cup cold water to each and stir again.
4. Pour the Jello.
Carefully pour or spoon the Jello mixtures over different sections of the cake, alternating red and blue. Focus on getting it into the holes for the signature "poke" look!
5. Chill the cake.
Cover and refrigerate the cake for at least 3-4 hours, or overnight for best results.


6. Top with whipped topping.
Once chilled, spread the Cool Whip evenly over the top.
7. Add sprinkles and serve.
Decorate with patriotic sprinkles just before serving. Slice and enjoy the surprise stripes inside!

Tips for Success
- Chill thoroughly before adding whipped topping - it helps everything set nicely.
- Poke holes deep enough for the Jello to really soak in, but not all the way to the bottom.
- Pour slowly so the Jello doesn't pool on top.
- Add sprinkles last minute so the colors stay crisp and don't run into the topping.
Recipe Variations
- Make it homemade: Use a scratch-made white cake instead of a mix for a more from-scratch version.
- Use different colors: Try red and green for Christmas, or pastels for Easter.
- Dairy-free version: Use a dairy-free whipped topping to accommodate dietary needs.
Serve With and Storage
Serving Suggestions:
- Serve chilled with fresh berries on the side.
- It pairs perfectly with lemonade, iced tea, or a scoop of vanilla ice cream.
Storage:
- Store covered in the refrigerator for up to 3 days.
- Best enjoyed within 24-48 hours for optimal texture and color.
- Avoid freezing - the texture won't hold up well once thawed.
Frequently Asked Questions
Can I make this cake the night before?
Yes! This poke cake is actually better when made ahead. Prepare it up to 24 hours in advance and refrigerate covered. Just wait to add the sprinkles until right before serving so the colors don't bleed.
Why is my Jello pooling on top instead of soaking in?
Make sure you're poking holes deep enough (about ยพ of the way through) and pour the Jello slowly right after mixing while it's still liquid. If the cake has cooled too long and formed a crust, the Jello won't absorb as well.
What's the best way to get clean slices?
Use a sharp knife and wipe it clean with a damp cloth between each cut. This keeps the red and blue colors from bleeding into each other and gives you those pretty defined stripes.


Red, White and Blue Poke Cake (4th of July Dessert)
Equipment
- 9x13-inch baking dish
- Mixing bowls
- Measuring cups
- Whisk or hand mixer
- Fork or wooden spoon handle (for poking holes)
- Spoon or squeeze bottle
- Refrigerator
Ingredients
- 1 box 15.5 oz white cake mix plus ingredients listed on box (usually eggs, oil, and water)
- 1 box 3 oz raspberry or cherry Jello
- 1 box 3 oz berry blue Jello
- 1 cup boiling water divided
- ยฝ cup ice cold water divided
- 8 ounces Cool Whip thawed
- Red white & blue sprinkles for topping
Instructions
- Prepare and bake the white cake mix in a 9x13 pan according to the package instructions. Let it cool for about 20 minutes.
- Once the cake has cooled slightly, use the end of a wooden spoon or a fork to poke holes all over the cake. You want to go about ยพ of the way down but not all the way to the bottom.
- In separate bowls, mix each Jello packet with ยฝ cup boiling water. Stir until dissolved. Add ยผ cup cold water to each and stir again.
- Carefully pour or spoon the Jello mixtures over different sections of the cake, alternating red and blue. Focus on getting it into the holes for the signature "poke" look!
- Cover and refrigerate the cake for at least 3-4 hours, or overnight for best results.
- Once chilled, spread the Cool Whip evenly over the top.
- Decorate with patriotic sprinkles just before serving. Slice and enjoy the surprise stripes inside!
Notes
- Slice with a sharp knife wiped clean between cuts to keep the colors defined.
- Add fresh blueberries and raspberries on top for even more patriotic flair.






Sophie Viau says
This colorful red, white & blue poke cake is the perfect no-fuss dessert for your Fourth of July party. Made with white cake, Jello, Cool Whip, and sprinkles, itโs festive, easy, and a hit with kids and adults alike!