2 tablespoons plus 3/4 cup polenta
or stone-ground corn meal
1 cup all-purpose flour
2 teaspoons baking powder
1 teaspoon salt
1/2 cup olive oil
5 large eggs, at room temperature
2 large egg yolks
1/2 teaspoon almond extract or 1 teaspoon vanilla extract
1 1/3 cups sugar
-
Preheat the oven to 350°F (175°C).
-
Smear 1 tablespoon butter all over the inside of a 10-cup (2.5-liter) Bundt cake or tube pan, or line 2 muffin pans with cupcake liners.. Sprinkle the 2 teaspoons of rosemary evenly into the pan, then dust with the 2 tablespoons (20 g) of polenta, tilting the pan to coat the sides.
-
To make the cake, in a small bowl, sift together the flour, 3/4 cup (130 g) polenta, baking powder, and salt. Set aside. In a separate bowl, whisk the olive oil, eggs, egg yolks, and almond or vanilla extract.
-
In a stand mixer fitted with the paddle attachment (or in a bowl by hand), beat together 1/2 cup (4 ounces/115 g) butter and the sugar on medium speed until light and fluffy, 3 to 5 minutes. With the mixer running, slowly dribble in the egg mixture, a little at a time, until completely incorporated. Stir in the flour mixture along with the 4 teaspoons of rosemary until just incorporated. Don’t over mix.
-
Scrape the batter into the prepared cake pan and smooth the top. Bake until a toothpick inserted into the center comes out clean, about 40 minutes. Let cool for about 30 minutes, then invert the cake onto a serving plate.
In a standing mixer fitted with a whisk, mix together sugar and butter. Mix on low speed until well blended and then increase speed to medium and beat for another 3 minutes.
Add vanilla and cream and continue to beat on medium speed for 1 minute more, adding more cream if needed for spreading consistency.