·       1/2 cup extra-virgin olive oil, plus more for pan

·       1 cup all-purpose flour, plus more for pan

·       1/2 cup finely ground toasted almonds

·       1/4 cup quick-cooking polenta or coarsely ground yellow cornmeal

·       1 1/2 teaspoons baking powder

·       Salt

·       2 large eggs

·       2/3 cup sugar

·       2 teaspoons finely grated lemon zest

·       1/3 cup whole milk

·       2 cups red seedless grapes

1. Preheat oven to 350 degrees. Brush an 8-inch square pan with oil; dust with flour, tapping out excess. Whisk together flour, almonds, polenta, baking powder, and 1/2 teaspoon salt. Beat eggs, sugar, and zest with a mixer on high speed until pale and fluffy. Reduce speed to low; slowly add oil. Beat in flour mixture in 3 additions, alternating with milk, beginning and ending with flour.

2. Spoon batter into pan; scatter 1 cup grapes over top. Bake for 15 minutes. Scatter remaining cup grapes over cake. Bake until cake is golden and a toothpick inserted into the center comes out clean, 25 to 27 minutes more. Let cool in pan on a wire rack for 15 minutes. Turn out, and cut into squares.