BECAUSE PÂTE À CHOUX DOESN'T BAKE ITSELF: Why restaurants probably don't actually want you to order dessert:
Food in general is tough to make money on. Restaurants have long relied on the mark-up they tack onto drinks, not grub, to boost profits. As food costs soar, that reality has only become more true, because there's a limit to how much people are willing to pay for different parts of their meal. For many mid-scale restaurants, that limit is $30 for entrees, no matter the ingredients, Todd Kliman noted recently in the Washingtonian. For desserts the ceiling is much lower, and much less flexible, says Cowen.
"Dessert needs good ingredients to taste good, but you can't psychologically convince people to pay even $20 for dessert," Cowen said. "You can't really go cheap on it, but you really can't charge extra either."...
Parties that might have finished their dinner in a little over an hour instead linger for closer to two when they opt for dessert. And they stay the extra 30 minutes while consuming only a fraction of what they did during the first part of the meal. It would be different if people ordered drinks more often alongside cake, but they often don't. It would change things if dessert wines were more popular, finer and more expensive, but they aren't, Cowen said.