No-Bake Cinnamon Apple Mousse Cake

Apple and cinnamon are the essence of autumn, but here they take on a new, elegant form. Thick, stewed apple purée is lifted to the clouds by whipped cream. The secret to the airy texture lies in the stabilizing power of gelatin, which holds the juicy fruit in suspension. This dessert proves that even the humblest everyday fruits can be transformed into a patisserie-quality treat.
🕒 Prep Time 30 mins
🍳 Cook Time 10 mins
Total Time 4 hrs 40 mins
🍽️ Servings 8 servings
🔥 Calories 280 kcal
🌍 Cuisine International

Ingredients

Equipment Needed

  • Box grater (large holes)
  • Springform pan (9-inch)
  • Hand whisk
  • Saucepan
  • Spatula

Allergen Information

⚠️ Milk
⚠️ Wheat
⚠️ Egg

Instructions

1

Peel and core the apples, then grate them using the large holes of a box grater. Immediately toss with lemon juice to prevent browning.

Tip: The acidity of the lemon juice prevents enzymatic browning (oxidation), keeping the apples a bright color.
2

Place the grated apples in a saucepan with the sugar, cinnamon, and a pinch of salt. Simmer over medium heat for 5-10 minutes until the apples release their juice and soften. Remove from heat and let cool to lukewarm.

Tip: Heat releases pectin, which helps thicken the juices, and concentrates the flavors.
3

Sprinkle the gelatin over the water in a small bowl and let sit for 5 minutes to bloom. Gently warm it (in the microwave or over hot water) until liquid, but do not boil. Stir into the lukewarm apple mixture.

Tip: It's crucial that the apple mixture isn't ice cold, or the gelatin will seize into lumps immediately.
4

Whip the cold heavy cream until stiff peaks form. Once the apple mixture has cooled to room temperature (but hasn't set yet), gently fold in the whipped cream in several batches.

Tip: If the apples are too warm, the whipped cream will melt, making the mixture runny. Temperature equalization is key.
5

Place the sponge cake layer into the springform pan (lining the sides with parchment paper or acetate strips is helpful). Pour the apple mousse over the cake and gently tap the pan on the counter to release air bubbles.

Tip: Tapping helps settle the cream, ensuring a smooth surface when sliced.
6

Refrigerate for at least 4 hours, or until the mousse is completely set. The gelatin needs this time to stabilize the structure.

Tip: Patience is essential; you cannot rush the gelatin setting time.
7

Remove the sides of the pan before serving. Dust with cinnamon or garnish with thin apple slices. Best served chilled.

Tip: For a crunchy texture, garnish with dried apple chips.

Recipe FAQ

Why did my apples turn brown?
Apple flesh oxidizes when exposed to air. The ascorbic acid in the lemon juice effectively slows down this process.
Can I use canned apples?
Yes, but the flavor will be less fresh, and you'll need to reduce the sugar in the recipe since canned fruit is often sweetened.
Which apples should I choose?
Tart, firm-fleshed varieties like Granny Smith or Honeycrisp are best, as they provide a nice contrast to the sweet cream.

Ingredients

  • 1 pc Store-bought Sponge Cake Layer (round, 9-inch)
  • 4 pcs Tart Apples (e.g., Granny Smith)
  • 1/2 cup Granulated Sugar
  • 1 1/4 cups Heavy Cream (cold)
  • 2 tsp Ground Cinnamon
  • 4 1/2 tsp Unflavored Gelatin Powder (approx. 2 packets)
  • 1/4 cup Water
  • 1 tbsp Lemon Juice
  • 1 pinch Salt