Preheat the oven to 350 degrees F. Butter a 10-inch loaf pan or an 8-inch round cake pan.
Whip the eggs and sugar together until thick and pale. Sift the flour, baking powder, baking soda and salt together. Fold one-third of the dry mixture into the egg mixture. Add the orange juice, and then fold in half of the remaining dry mixture. Add the milk, and then fold in all of the remaining dry mixture.
Fold in the olive oil, rosemary and orange zest. Pour the batter into the prepared pan and bake until firm to the touch and nicely browned, about 40 minutes.
Serve warm or at room temperature.
This recipe was provided by a professional chef or restaurant and may have been scaled down from a bulk recipe. The Food Network Kitchens chefs have not tested this recipe, in the proportions indicated, and therefore, we cannot make any representation as to the results.