Fluffy Coconut Marshmallow Frosting
Desserts

Fluffy Coconut Marshmallow Frosting

ML
By Marie Lefebvre · Updated October 4, 2026

Light as a cloud and delicately sweet, this homemade coconut marshmallow frosting will elevate any dessert to bakery-level perfection. Built on a silky Italian meringue base and finished with fresh grated coconut, it's the ultimate topping for pies, layer cakes, and creamy desserts. Five ingredients, twenty minutes, endless compliments.

Prep⏱️ 20 min
Servings👥 25 servings
Difficulty📊 Easy
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🛒 Ingredients

25 servings

25
  • 1 cup (240 ml) water
  • 1 cup (200 g) granulated sugar
  • 2 egg whites, room temperature
  • 1/2 teaspoon fresh lemon juice
  • 3/4 cup (80 g) freshly grated coconut

Directions

  1. 1

    Combine water and sugar in a heavy-bottomed saucepan. Bring to a boil over medium heat, stirring until the sugar dissolves. Continue cooking without stirring until the syrup reaches the thick thread stage (about 118 °C / 244 °F — a thick, continuous thread should form when you lift a fork and blow gently).

  2. 2

    While the syrup cooks, beat the egg whites with the lemon juice in a stand mixer on high speed until stiff, glossy peaks form.

  3. 3

    With the mixer still running on high, slowly drizzle the hot sugar syrup in a thin, steady stream directly onto the egg whites. Continue beating until the marshmallow frosting is brilliant white, firm, and holds its shape completely without sliding off the whisk.

  4. 4

    Gently fold in the freshly grated coconut using a silicone spatula, using slow folding motions to preserve the airy texture.

  5. 5

    Use immediately to frost cakes, pies, pavê, or any sweet dessert you like.

💡 Chef's Tip

Make sure your bowl and beaters are completely clean and grease-free — any trace of fat will prevent the egg whites from reaching stiff peaks. Room-temperature whites whip up faster and give better volume. Work quickly once the frosting is ready, as it sets as it cools.