Grinch Poke Cake: Easy Green Jello Christmas Sheet Cake

Grinch poke cake is the most fun dessert on the Christmas table. A fluffy white cake is poked all over and filled with bright lime jello, so every slice has green streaks. It is topped with a creamy whipped frosting and little red heart sprinkles for the Grinch’s heart that grew three sizes.

It starts with a boxed cake mix, so it is easy enough for kids to help.

Pair it with my Grinch fudge, Grinch cookies, and Grinch punch for a full Grinchmas party.

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Why You’ll Love This Grinch Poke Cake

A colorful cake that makes everyone smile.

Easy Cake Mix Base

No baking from scratch.

Super Moist

The jello soaks into every bite.

Fun Look

Bright green with red hearts.

Make Ahead

It needs to chill anyway.

What Is Grinch Poke Cake?

A poke cake is a baked sheet cake with holes poked into it, filled with liquid jello, pudding, or sweetened condensed milk.

This Grinch version uses lime jello and green food coloring for a fun Christmas theme.

Ingredients

Cake

IngredientAmountPurpose
White cake mix1 box (15.25 oz)Base
Eggs, oil, and waterAs box directsCake batter
Green gel food coloring4 dropsGrinch color

Jello Filling

IngredientAmountPurpose
Lime jello1 box (3 oz)Flavor and green streaks
Boiling water1 cupDissolves jello
Cold water½ cupCools jello

Topping

IngredientAmountPurpose
Instant vanilla pudding mix1 box (3.4 oz)Stable frosting
Cold milk1 cupSets pudding
Whipped topping, thawed1 tub (8 oz)Fluffy frosting
Red heart sprinkles2 tablespoonsGrinch’s heart
Green sprinkles1 tablespoonDecoration

Kitchen Equipment

  • 9×13-inch baking pan
  • Mixing bowls
  • Wooden spoon handle or straw
  • Whisk
  • Offset spatula

Ingredient Tips

Gel Coloring

Gel color makes the cake bright without changing texture.

Lime Jello

It gives the best green color and a fresh flavor.

Pudding Frosting

Mixing pudding into whipped topping keeps the frosting firm.

How to Make Grinch Poke Cake

Step 1: Bake

Heat oven to 350°F. Prepare the cake batter, stir in the green coloring, and bake in a greased 9×13 pan according to the box, about 28 to 30 minutes.

Step 2: Cool and Poke

Cool 15 minutes. Poke holes every inch with the handle of a wooden spoon.

Step 3: Make Jello

Dissolve the jello in boiling water, then stir in the cold water.

Step 4: Fill

Slowly pour the jello over the cake, letting it fill the holes. Chill 3 hours.

Step 5: Frosting

Whisk the pudding mix and milk 2 minutes, then fold in the whipped topping.

Step 6: Frost and Decorate

Spread the frosting over the cake and top with heart and green sprinkles. Chill 1 hour before serving.

Expert Tips for Perfect Grinch Poke Cake

Poke Deep

Go almost to the bottom for big jello streaks.

Pour Slowly

Aim for the holes, not the edges.

Chill Well

The jello needs time to set.

Delicious Variations

Strawberry Heart Center

Use strawberry jello in a heart-shaped area.

Chocolate Cake

Use a chocolate cake for a dark contrast.

Cream Cheese Frosting

Use cream cheese frosting for tang.

Cupcakes

Make Grinch poke cupcakes; bake 18 minutes.

What to Serve with Grinch Poke Cake

Serve chilled slices at Christmas parties, movie nights, or classroom celebrations.

Storage Instructions

Storage MethodHow LongBest Practice
Refrigerator4 daysCovered
Freezer1 monthUnfrosted is best
Room Temperature2 hours maxDairy topping

Keep it covered in the fridge so the topping stays fresh.

Can You Make It Ahead?

Bake and fill the cake a day ahead; frost the next day.

Common Mistakes to Avoid

Poking a Hot Cake

The cake tears; let it cool 15 minutes.

Pouring Hot Jello

Cool it slightly with cold water.

Too Little Chill Time

The cake will be soggy and loose.

Estimated Nutrition

NutrientAmount Per Serving
Calories300
Carbohydrates45g
Protein3g
Fat12g
Saturated Fat5g
Fiber0g
Sugar30g
Sodium370mg
Cholesterol40mg

Estimate for 1 of 15 slices.

Frequently Asked Questions

What is a Grinch poke cake?

A white cake filled with lime jello through poked holes, frosted with whipped topping, and topped with red heart sprinkles.

Can I make poke cake the day before?

Yes. It tastes better after chilling overnight.

What can I use to poke the cake?

The round handle of a wooden spoon, a straw, or a chopstick.

Can I use homemade cake?

Yes. Any 9×13 white or vanilla cake works.

Does poke cake need to be refrigerated?

Yes, because of the jello and whipped topping.

Conclusion

Grinch poke cake is bright, moist, and pure Christmas fun.

Make it for your holiday party and watch the kids light up.

Print

Grinch Poke Cake: Easy Green Jello Christmas Sheet Cake

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A fluffy white sheet cake poked and filled with bright lime jello, covered in vanilla whipped frosting, and topped with red heart and green sprinkles.

  • Author: Emily
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 4 hours 45 minutes
  • Yield: 15 slices 1x
  • Category: Desserts
  • Method: Baked
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale

Cake:

1 box (15.25 oz) white cake mix

As box directs eggs, oil, and water

4 drops green gel food coloring

Jello Filling:

1 box (3 oz) lime jello

1 cup boiling water

½ cup cold water

Topping:

1 box (3.4 oz) instant vanilla pudding mix

1 cup cold milk

1 tub (8 oz) whipped topping, thawed

2 tablespoons red heart sprinkles

1 tablespoon green sprinkles

Instructions

Heat oven to 350°F. Prepare the cake batter, stir in the green coloring, and bake in a greased 9×13 pan according to the box, about 28 to 30 minutes.

Cool 15 minutes. Poke holes every inch with the handle of a wooden spoon.

Dissolve the jello in boiling water, then stir in the cold water.

Slowly pour the jello over the cake, letting it fill the holes. Chill 3 hours.

Whisk the pudding mix and milk 2 minutes, then fold in the whipped topping.

Spread the frosting over the cake and top with heart and green sprinkles. Chill 1 hour before serving.

Notes

Cool cake 15 minutes before poking.

Chill at least 3 hours after adding jello.

Store in the fridge.

Nutrition

  • Serving Size: 1 slice
  • Calories: 300
  • Sugar: 30g
  • Sodium: 370mg
  • Fat: 12g
  • Saturated Fat: 5g
  • Carbohydrates: 45g
  • Fiber: 0g
  • Protein: 3g
  • Cholesterol: 40mg

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