Why is it called “cloud cake”?
Because the texture is the point: airy, light, and pillowy. Whipping the eggs and sugar gives the batter lift, then folding keeps that air from getting knocked out.
Is this the same as angel food cake?
Nope. Angel food is fat-free and made with just egg whites, which makes it super light but also more delicate. This cake uses whole eggs plus butter, so it is still airy, but more hearty and homestyle.
Can I make it in a loaf pan or a 9x13 pan?
Yes, with a couple quick tweaks.
- Loaf pan: Use a 9x5-inch loaf pan if you can. Bake at 350°F for about 45 to 60 minutes. If you only have an 8.5x4.5-inch pan, it will dome higher and may need closer to 55 to 70 minutes. Tent with foil if the top browns early.
- 9x13-inch pan: Bake at a steady 350°F for about 22 to 30 minutes. Start checking at 20 minutes, since it bakes faster and will be shorter.
In both cases, use the doneness cues: deep golden top, center springs back lightly, toothpick with a few moist crumbs.
My cake sank a little in the middle. What happened?
Usually one of three things: the eggs were not whipped enough, the batter got overmixed after adding flour, or the cake was underbaked. For doneness, look for a center that springs back lightly and an internal temperature around 195°F to 205°F (thermometer is optional, but helpful).
My cake is dense or tight. How do I fix that next time?
This is almost always an air issue. Either the eggs and sugar were under-whipped (you want a thick ribbon that sits on the surface for a few seconds), or the batter got deflated while folding in the flour and butter mixture. Fold gently, scrape the bottom, and stop the second the batter looks uniform.
Help, it stuck to the pan.
Springform pans are great, but they can grab. Grease the sides really well, line the bottom with parchment, and lightly grease the parchment too. After the 15-minute cool, run a thin knife around the edge before releasing the ring.
Can I reduce the sugar?
You can reduce it slightly, but sugar helps with moisture and structure. I would not cut more than 1/4 cup or the crumb can turn a little dry and the rise can suffer.