I love gluten-free baking, but gluten-free angel food cake is probably my favorite recipe of them all. It's phenomenally light and fluffy, perhaps even more so than the original, thanks to a blend of gluten-free flours that offers a more delicate balance of starch and protein than unbleached cake flour. The recipe itself couldn't be easier: Just throw some cold egg whites and sugar into a bowl, whip 'em up, and stop before they're stiff. For more information, and photos of vital steps along the way, check out my summary of the technique here.
Why It Works
- Fragile starches, like arrowroot and tapioca starch, help bind the batter while minimizing the chalky taste of cornstarch, a powerhouse essential to the cake's rise.
- Combining eggs and sugar all at once creates a dense but stable meringue.
- Whipping the meringue in stages creates a fine network of air cells, for a more delicate crumb.
- Plain aluminum gives the cake traction through its rise and cooling period—never use nonstick!
- Yield:Makes one 10-inch tube cake
- Active time: 15 minutes
- Total time:3 hours
- 2 ounces tapioca flour or arrowroot starch (about 1/2 cup; 56g)
- 1 1/2 ounces white rice flour (about 1/3 cup; 42g)
- 1 1/2 ounces cornstarch (about 1/3 cup; 42g)
- 1 ounce coconut flour (about 1/4 cup; 28g)
- 1 teaspoon (4g) baking powder
- 15 ounces cold egg whites (about 2 cups; 425g), from 12 large eggs
- 15 ounces granulated sugar (about 2 cups; 425g)
- 1 tablespoon (15ml) vanilla extract
- 1 ounce freshly squeezed lemon juice (2 tablespoons; 30ml), from 1 small lemon
- 1/4 teaspoon (1g) Diamond Crystal kosher salt; for table salt, use half as much by volume or use the same weight
Adjust oven rack to the middle position and preheat to 350°F. Sift tapioca flour or arrowroot starch, white rice flour, cornstarch, coconut flour, and baking powder into a large bowl. Whisk together until homogeneous, then sift mixture one more time to ensure total uniformity prior to mixing.
Combine egg whites, sugar, and vanilla extract in the bowl of a stand mixer fitted with the whisk attachment. Mix on low to loosen, about 1 minute, then increase to medium-low (4 on a KitchenAid) and whip 3 minutes; the whites will be dense and dark.
With the mixer still running, add lemon juice and salt. Immediately increase to medium (6 on a KitchenAid) and whip 3 minutes more; the meringue will be thin but foamy. Increase to medium-high (8 on a KitchenAid) and continue whipping until the meringue is glossy white and thick enough that you can see the pattern left by the wire whisk. This can take between 2 and 4 minutes, depending on the freshness of the whites and the horsepower of your mixer. When meringue is ready, it should be soft enough to run off the wires when the whisk attachment is removed, but thick enough to mound up on itself like soft-serve in the bowl.
Sprinkle flour blend on top and stir with a flexible spatula to roughly combine. Switch to a folding motion, scraping from the bottom up and folding through the center, until no pockets of flour remain. Scrape the batter into a 10-inch aluminum tube pan (do not butter or grease pan); if you notice any small pockets of unincorporated flour, simply pause to mix them in. Bake until the cake is puffed, golden blond, and firm to the touch, about 45 minutes, or to an internal temperature of 206°F.
Invert pan onto its stilts, over the neck of a wine bottle, or onto a trio of cans (see note above) and cool upside down until absolutely no trace of warmth remains, at least 2 hours. Slide an offset spatula around the sides of cake to loosen, remove the insert, and slide spatula under the bottom as well. Flip onto a serving plate, pulling gently on the sides of cake to release it from the center tube. To serve, cut with a chef's knife, using a gentle sawing motion and only the slightest downward pressure. In an airtight container, leftovers will keep up to a week at room temperature.