This Strawberry Shortcake Sheet Cake has all the classic flavors of strawberry shortcake in an easy-to-serve 9x13 dessert. A soft vanilla cake is topped with sweet macerated strawberries and fluffy whipped cream for the perfect summer treat.
Preheat oven to 350°F. Line a 9x13-inch baking pan with parchment paper, or grease well and dust with flour.
In a medium bowl, whisk together the flour, baking powder, and salt until evenly combined. Set aside.
In a large bowl, beat the eggs and sugar with a hand mixer, or a stand mixer fitted with the whisk attachment, until pale, fluffy, and thick enough to form ribbons when the beaters are lifted. This will take about 5 minutes.
Beat in the oil and vanilla extract.
Add one-third of the flour mixture and mix gently until just combined.
Add half of the milk and mix until incorporated.
Repeat with another one-third of the flour mixture, the remaining milk, and then the last of the flour mixture, mixing gently after each addition.
Mix just until the batter is smooth. Be careful not to overmix.
Pour the batter into the prepared baking pan and gently shake the pan to level it.
Bake for 30 to 35 minutes, or until the center is firm and a skewer inserted into the cake comes out clean.
Cool in the pan for 10 minutes, then transfer to a cooling rack and let cool completely.
Prepare the Strawberries
While the cake is baking, place the sliced strawberries in a bowl.
Add the granulated sugar and toss to combine.
Let the strawberries sit while the cake bakes and cools, stirring occasionally to redistribute the juices.
Make the Whipped Cream
Let the strawberries sit while the cake bakes and cools, stirring occasionally to redistribute the juices.
Add the whipping cream, powdered sugar, and cornstarch to the chilled bowl. Whisk gently to help dissolve the sugar and cornstarch.
Using a hand mixer or stand mixer, begin mixing on low speed, then increase to high. Whip until stiff peaks form.
Cover and refrigerate until ready to assemble.
Assemble the Cake
Once the cake is completely cool, use a chopstick or skewer to poke holes across the top of the cake.
Spoon the macerated strawberries and their juices evenly over the cake, allowing the juice to soak into the holes.
Spread the whipped cream evenly over the strawberries.
Slice into 12 to 15 pieces and decorate with sliced or halved strawberries before serving.
Notes
This cake is best served the same day it is assembled.
Store covered in the refrigerator for up to 2 days.
The cornstarch helps stabilize the whipped cream, making it hold up better if the cake is not served right away.
Use a neutral oil for the best texture. Coconut oil or melted butter are not recommended because they can firm up once the cake is refrigerated.
The baked cake can be wrapped tightly and frozen for up to 1 month. Defrost overnight in the refrigerator before assembling.
For a flavor twist, substitute almond extract for vanilla extract or add 1 tablespoon of orange zest.