Preheat oven to 375 degrees F. Grease a 12 inches x 16 inches pan or large cast iron skillet. Combine cornmeal, flour, salt, sugar, baking powder, and vanilla. Add eggs lightly beaten with milk and beat until the batter is thoroughly blended. Stir in heavy cream and butter. Spread the batter into baking pan and bake for 20 minutes, or until well browned.
Preheat oven to 190 degrees C. Grease a 30 cm x 41 cm pan or large cast iron skillet. Combine cornmeal, flour, salt, sugar, baking powder, and vanilla. Add eggs lightly beaten with milk and beat until the batter is thoroughly blended. Stir in heavy cream and butter. Spread the batter into baking pan and bake for 20 minutes, or until well browned.