High-Protein Cloud Cake

Oven Intensity: Moderate heat at 325°F (160°C) – lower than usual cakes to preserve the airy structure.

Effort Rating: 7/10 – whipping egg whites to stiff peaks takes endurance, but the result is worth every second.

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Ingredients

Dry Mix

• 1 cup (120g) ultra-fine almond flour (not coarse meal)

• ¼ cup (30g) vanilla whey or plant-based protein powder (unflavored or vanilla works best; avoid casein as it gets too dense)

• 2 tablespoons coconut flour (adds structure without heaviness)

• 1 teaspoon baking powder (ensure aluminum-free)

• ¼ teaspoon fine sea salt

Wet & Fluff

• 4 large egg whites (room temperature – critical for volume)

• 2 large egg yolks (room temperature)

• ⅓ cup (80ml) unsweetened almond milk (or any milk of choice)

• ¼ cup (60g) plain Greek yogurt (2% or full-fat for creaminess)

• 2 tablespoons coconut oil, melted (or light-tasting avocado oil)

• 1 teaspoon pure vanilla extract

• ½ teaspoon cream of tartar (stabilizes egg whites)

• 2 tablespoons monk fruit sweetener or allulose (optional for lower sugar; see note)

Optional Toppings (for serving)

• Dusting of powdered erythritol

• Fresh berries

• Light drizzle of sugar-free maple syrup

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Nutrition Information (per slice, 1/8 of cake)

Note: Nutrition calculated using whey protein and monk fruit sweetener. Values may vary slightly with substitutions.

Why it works: With 12g of protein and only 3g net carbs, this cake stays blood-sugar friendly while keeping you full for hours.

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Equipment You’ll Need

• Stand mixer or hand-held electric beaters (non-negotiable – your arm will thank you)

• Two large mixing bowls (absolutely grease-free – even a speck of fat kills egg white volume)

• 8-inch round springform pan or angel food cake pan (don’t grease the sides – the batter needs to climb)

• Rubber spatula (for gentle folding)

• Fine-mesh sieve (for sifting dry ingredients)

• Parchment paper (for the bottom only)

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Step-by-Step Instructions

1. Preheat & Prepare the Pan

Set your oven to 325°F (160°C). Cut a circle of parchment paper to fit the bottom of your 8-inch springform pan. Place it inside – do not grease the sides. The batter needs to grip the ungreased walls to rise into a cloud.

2. Separate Eggs Like a Pro

Cold eggs separate more cleanly, but room-temperature whites whip better. So separate them when cold, then let the whites sit on the counter for 20 minutes. Zero yolk allowed in the whites – any fat will sabotage your fluff. If a speck of yolk falls in, fish it out with an eggshell half.

3. Combine Dry Ingredients

In a medium bowl, sift together:

• Almond flour (it’s coarse, so press through sieve)

• Protein powder (watch for clumps)

• Coconut flour

• Baking powder

• Salt

Whisk to distribute evenly. Set aside.

4. Make the Wet Base

In a large bowl, whisk the egg yolks until pale and thick (about 1 minute). Add almond milk, Greek yogurt, melted coconut oil, vanilla extract, and sweetener (if using). Whisk until smooth – it will look like thin custard.

5. Whip the Whites to Stiff Peaks

This is the heart of the recipe. Don’t rush.

Pour egg whites into your perfectly clean, dry mixer bowl. Add cream of tartar (this lowers pH and stabilizes). Start beating on medium-low until foamy (tiny bubbles), about 1 minute. Increase to medium-high. After 2-3 minutes, you’ll see soft peaks that flop over. Continue for another 2-3 minutes until stiff peaks form – when you lift the beater, the white stands straight up with a slight curl at the tip, and the bowl can be inverted without anything moving.

Test: Stick a spoon into the whipped whites. It should stand upright. Over-whipped? If it looks grainy or curdled, you’ve gone too far – start over with fresh whites.

6. Fold with a Feather Touch

Sprinkle one-third of the dry mix over the yolk mixture. Fold gently with a rubber spatula (cut down the center, scrape along the bottom, lift up and over). Add another third, fold 5-6 strokes. Now add one quarter of the whipped whites to the yolk-dry batter – this “sacrificial” batch lightens the dense base. Fold until mostly combined (some streaks okay).

Now pour the lightened batter over the remaining whipped whites. Do not stir. Use the same folding motion: cut, scrape, lift, turn. Rotate the bowl. Repeat about 15-20 times until no white streaks remain. The batter should be voluminous, billowy, and slightly thick – like shaving cream.

7. Bake Without Peeking

Gently spoon the batter into the ungreased pan. Smooth the top lightly – don’t press down. Bake on the middle rack for 30-35 minutes. Resist opening the oven for the first 25 minutes; cold air collapses the fragile structure.

The cake is done when:

• Top is golden brown and springy to the touch

• A wooden skewer inserted in the center comes out clean or with a few moist crumbs (not wet)

• The cake has pulled slightly away from the sides

8. Cool Upside Down (Secret to Cloud Texture)

This is non-negotiable for tall, airy cakes. Immediately after removing from oven, invert the pan onto a wire rack or the neck of a bottle (if using angel food pan). Let cool completely, about 1 hour. This prevents the delicate crumb from sinking under its own weight. For springform pans, invert onto a rack and remove the outer ring after 30 minutes.

9. Release & Serve

Run a thin knife around the inner tube (if applicable) and the bottom edge. Gently lift off the pan bottom. Place a plate on top, flip, and peel off parchment. Flip back right side up. Dust with powdered sweetener or serve with fresh berries.