Double Decker Knox Blox

Prep: 10 min Serves: 100 Cuisine: American

Creamy, fruity, and refreshing, Double Decker Knox Blox combines layered gelatin and whipped topping, perfect for parties or a cool summer treat loved by all ages.

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Ingredients

  • 4 envelopes Knox unflavored gelatine
  • 3 (3 oz.) packages flavored Jell-O
  • 3 cups boiling water

Instructions

  1. In a large bowl, combine the gelatin and Jell-O mixes.
  2. Add boiling water and stir until completely dissolved.
  3. Add Cool Whip and stir well.
  4. Pour into a shallow 9 x 13-inch baking pan.
  5. Chill until firm.
  6. Cut into 1-inch squares.

Tips & Substitutions

For a smoother texture, ensure that the Jell-O and gelatin are fully dissolved before adding any additional ingredients. You can experiment with different flavored Jell-O varieties to customize the taste. If you want a vegan version, try using agar-agar as a substitute for gelatin and make sure your whipped topping is dairy-free. Chill the finished product longer for a firmer consistency.

Serving Suggestions

Serve these delicious Knox Blox as a light dessert at parties or gatherings, as they pair beautifully with Pink Or Green Punch. For a fun twist, consider layering different flavors for a colorful presentation. They also make a great addition to a dessert table alongside other treats like Cherry Cake Pudding or a No-Bake Dessert Cake.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to one week. To maintain the best texture, avoid freezing the Knox Blox, as this can alter their consistency. When ready to serve, simply cut them into squares directly from the fridge.

Nutrition & Diet Analysis (per serving)

Each serving of Double Decker Knox Blox contains roughly 128 calories, with 5g protein, 22g carbohydrates, and 3g fat. It is a good source of dietary fiber (11% of the Daily Value). It also contributes 3g of dietary fiber toward your daily target.

128 kcal 6% DV
Protein Fat Carbs

Macronutrients

Protein 4.6g 9% DV
Total Fat 2.7g 4% DV
Carbs 21.6g 8% DV
Fiber 3.1g 11% DV
Sugar 0.5g 1% DV

Electrolytes

Sodium 127.8mg 6% DV
Potassium 126mg 3% DV

Vitamins & Minerals

Calcium 16.2mg 1% DV
Iron 1.6mg 9% DV
Diet fit Under 400 cal Low-fat

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use different flavors of Jell-O?

Absolutely! Feel free to mix and match your favorite Jell-O flavors to create a unique combination. Just remember to keep the proportions the same to ensure the consistency remains perfect.

How long does it take for the Knox Blox to set?

Typically, the Knox Blox will need at least 4 hours to chill and set properly in the refrigerator. For best results, consider preparing them a day ahead of time to allow for adequate setting.

Can I add fruit to the Knox Blox?

Yes, you can add small pieces of fruit, like berries or diced peaches, just be sure to add them after the mixture has cooled slightly but before pouring it into the baking pan. This will help them suspend evenly in the gelatin.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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