This versatile cake is made even better by the addition of toppings like our Caramelized Pineapple, Warm Chocolate Sauce, or Lemon Curd.
Preheat oven to 350 degrees, with rack in lower third. Butter an 8-by-4-inch loaf pan; dust with flour, tapping out excess. In the bowl of an electric mixer, cut almond paste into 2/3 cup sugar with two forks until it resembles coarse meal. Add the butter; using the paddle attachment, beat until soft and light, about 4 minutes.
In a medium bowl, whisk together extracts, cream, and egg yolks. With mixer on medium, gradually add cream mixture to butter mixture. In a small bowl, stir together flour, cornmeal, baking powder, and salt. Sift half the flour mixture over butter mixture, and fold to combine. Fold in remaining flour mixture.
In another mixing bowl, beat the egg whites and remaining 1 1/2 tablespoons sugar on medium speed until stiff peaks form, 2 to 3 minutes. Fold into batter.
Pour batter into prepared pan. Bake until a cake tester inserted in the center comes out clean, about 1 hour. If top begins to brown too much, cover loosely with foil. Let cool before serving.