- Prep time 15 minutes
- Cook time 30 minutes
- makes 1 (10-inch) skillet cake
This batter contains just a few ingredients and produces a beautiful cake that’s best served warm from the oven. The “hardest” part is whipping the egg whites—they help give the batter structure, allowing it to rise and contributing a light, airy texture. It’s best to err on the side of under-baking this cake and serve it immediately by spooning it into bowls so it can be enjoyed at the peak of its gooey perfection. —Erin Jeanne McDowell
Test Kitchen Notes
Bake It Up a Notch is a column by Resident Baking BFF Erin Jeanne McDowell. Each month, she'll help take our baking game to the next level, teaching us all the need-to-know tips and techniques and pointing out all the mistakes to avoid along the way. —The Editors
(70 grams) unsalted butter, room temperature, divided
Finely grated zest of 1 lemon
(198 grams) granulated sugar, divided
(75 grams) fresh lemon juice
large (170 grams) eggs, separated
(60 grams) all-purpose flour
(230 grams) whole milk
(285 grams) fresh raspberries
(2 grams) vanilla extract
Powdered sugar, for dusting
- Heat the oven to 325°F. Generously butter an ovenproof skillet with 1 tablespoon (14 grams) of the butter.
- In a medium bowl, using a spatula, mix the lemon zest, ¾ cup (150 grams) of the granulated sugar, and the remaining 4 tablespoons (56 grams) of the butter until well combined. Whisk in the lemon juice and egg yolks.
- Sprinkle the flour over the egg yolk mixture and whisk to combine, then whisk in the milk until the batter is smooth.
- In a medium bowl, using an electric mixer on medium speed, beat the egg whites for 3 to 4 minutes, to medium peaks. Gently fold the whipped egg whites into the batter.
- Pour the batter into the prepared skillet. In the same bowl, using a potato masher or large fork, gently mash the raspberries with the vanilla extract and the remaining ¼ cup (50 grams) of the granulated sugar. Dollop the raspberry mixture over the batter.
- Bake for 30 to 35 minutes, until the top is lightly browned but the cake still appears visibly soft (it’s okay to dip a spoon into one side to check for doneness; it should be soft below the surface). It’s best to err on the side of under-baking this cake.
- Dust with powdered sugar and serve warm.