Broa de Fubá

• 14 tablespoons (1¾ sticks) unsalted butter, at room temperature
• 2 cups sugar

Preheat the oven to 300°F. Butter and flour a 2-inch-deep 9 x 13-inch baking pan and tap out any excess flour.

In the bowl of an electric mixer, beat the butter with the sugar. Add the eggs one at a time. Gradually add the flour, baking powder, and milk. Add the cornmeal and gr