Rainbow Wagon Wheels 

Immerse yourself in the vibrant world of Rainbow Wagon Wheels! These eye-catching biscuits are not only a feast for the eyes with their hidden rainbow layers, but also a delight to taste with their fluffy marshmallow filling, all encased in smooth milk chocolate.


For the Biscuit Dough:

  • Butter: 14 tablespoons (200 grams), at room temperature
  • Icing Sugar: 2 1/3 cups (300 grams)
  • Eggs: 3
  • Vanilla Essence: 1 teaspoon
  • Salt: 1 teaspoon
  • Plain Flour: 6 1/3 cups (800 grams)
  • Food Coloring Gels: Red, yellow, green, blue, purple, orange

For the Marshmallow Filling:

  • Egg Whites: 2 large
  • Cream of Tartar: 1/2 teaspoon
  • Caster Sugar: 27 grams + 2 tablespoons (27 grams + 80 grams)
  • Golden Syrup: 3/4 cup (180 grams)

For Assembly:

  • Milk Chocolate: 17 1/2 ounces (500 grams), melted


  1. Prepare Biscuit Dough:
    • Cream the butter and icing sugar until smooth.
    • Gradually add eggs, vanilla essence, and salt.
    • Slowly mix in flour to form a soft dough.
    • Divide the dough into six equal parts, tint each with a different food coloring, then shape into disks.
    • Stack the colored disks, roll out between parchment paper to 3mm thickness, cut into 9cm circles, and refrigerate on a baking sheet.
  2. Baking:
    • Preheat the oven to 350°F (180°C).
    • Bake the chilled dough circles for 8 minutes.
    • Allow to cool on the tray for 10 minutes before transferring to a wire rack to cool completely.
  3. Prepare Marshmallow Filling:
    • Whisk egg whites with cream of tartar until foamy.
    • Gradually add 27 grams of caster sugar until stiff peaks form.
    • In a saucepan, heat golden syrup and 80 grams of caster sugar until the sugar dissolves and the mixture begins to simmer.
    • Slowly pour the hot syrup into the egg whites, beating continuously until the mixture is glossy and thick.
  4. Assembly:
    • Spread marshmallow filling on one cookie and top with another cookie to make a sandwich.
    • Dip each sandwich in melted milk chocolate and let set.

Prep Time: 20 minutes
Cook Time: 15 minutes
Total Time: 35 minutes plus chilling
Servings: 12


  • Ensure all ingredients are at room temperature to ensure smoother mixing and more consistent cookies.
  • Use high-quality gel food colorings for vibrant dough colors.
  • Thoroughly chill the dough before baking to maintain the shape and enhance the definition of colors.

Conclusion: These Rainbow Wagon Wheels are perfect for any celebration, adding a splash of color and a touch of whimsy. Whether for a party or a special treat, these cookies will surely brighten anyone’s day with their festive appearance and delicious taste. Enjoy crafting these delightful treats and watch them disappear before your eyes! 🎉🍪

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