CORNMEAL-BERRY SHEET CAKE

Cornmeal-Berry Sheet Cake image

Provided by Martha Stewart

Time 2h50m

Number Of Ingredients 11

1 1/2 sticks unsalted butter, room temperature, plus more for pan
1 1/2 cups all-purpose flour
3/4 cup fine yellow cornmeal
1 1/2 teaspoons baking powder
3/4 teaspoon coarse salt
1 1/2 cups plus 2 tablespoons sugar
3 large eggs
1 1/2 teaspoons pure vanilla extract
3/4 cup buttermilk
18 ounces mixed fresh berries, such as blueberries, raspberries, and blackberries (cut in half if large), plus more for serving
Whipped cream, for serving

Steps:

Preheat oven to 325 degrees. Butter a 9-by-13-inch baking pan and line with parchment, leaving overhang on long sides. Butter parchment. Whisk together flour, cornmeal, baking powder, and salt in a bowl.
Beat butter and 1 1/2 cups sugar on medium-high speed until pale and fluffy, about 2 minutes. Add eggs, one at a time, beating well and scraping down sides of bowl as needed. Beat in vanilla. Add flour mixture in 3 batches, alternating with 2 batches of buttermilk and beating until just combined. Spread batter in prepared pan.
Sprinkle berries over top, then sprinkle with remaining 2 tablespoons sugar. Bake until golden brown and a toothpick inserted into center comes out clean, about 1 hour. Let cool completely on a wire rack. Remove cake with parchment and cut into pieces (3 or 4 on short side, then 4 or 6 on long side). Cake is best served the same day, with whipped cream and additional berries.