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Strawberry Jello Flag Cake

Strawberry Jello Flag Cake

Strawberry Jello Flag Cake is a light vanilla cake soaked with strawberry jello, topped with whipped cream, and decorated with fresh strawberries and blueberries in a patriotic flag design—perfect for 4th of July or any summer celebration.
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Course: Dessert
Cuisine: American
Keyword: Strawberry Jello Flag Cake
Prep Time: 20 minutes
Cook Time: 30 minutes
Chill Time:: 2 hours
Total Time: 2 hours 50 minutes
Servings: 12 Servings
Calories: 310kcal

Equipment

  • 9×13 inch baking dish
  • Mixing bowls
  • Electric mixer or whisk
  • Measuring cups and spoons
  • Saucepan (for boiling water)
  • Wooden spoon or large skewer (for poking holes)
  • Offset spatula or butter knife (for spreading whipped topping)

Ingredients

  • 16.5 oz vanilla cake mix
  • 1 cup water for cake mix
  • 3 large eggs
  • 1/3 cup canola oil
  • 1 cup boiling water
  • 3 oz strawberry Jello mix
  • 1/2 cup cold water
  • 8 oz whipped cream like Cool Whip
  • 1 pint fresh blueberries
  • 1 1/2 quarts fresh strawberries hulled and sliced

Instructions

Step 1: Bake the Cake

  • Preheat your oven to 350°F (175°C). In a large bowl, combine the cake mix, water, eggs, and oil. Beat for about 2 minutes until the batter is smooth. Pour into a greased 9×13-inch pan and bake for 28–30 minutes, or until a toothpick comes out clean.

Step 2: Cool and Poke

  • Let the cake cool for 15–20 minutes. Then, using the handle of a wooden spoon or a large skewer, poke holes all over the top. Go deep enough so the jello seeps in, but not all the way through the bottom.

Step 3: Make the Jello

  • In a small bowl, mix the boiling water with the strawberry Jello powder. Stir until completely dissolved. Add the cold water and stir again.

Step 4: Pour and Chill

  • Slowly pour the jello over the cake, letting it fill the holes. Cover the cake and refrigerate for at least 2 hours (overnight is even better).

Step 5: Frost and Decorate

  • Spread the whipped topping evenly over the chilled cake. Use blueberries to create the stars part of the flag in the upper left corner. Line up strawberry slices for the red stripes across the rest of the cake.
  • Tip: Start decorating from the top left and work your way out — it’s easier to space everything evenly this way!

Nutrition

Calories: 310kcal | Carbohydrates: 45g | Fat: 12g | Fiber: 2g | Sugar: 30g