Craving a muffin but not a muffin top? You may want to try this blueberry muffin recipe from Gwyneth Paltrow. It's a riff on her mother's recipe, but gone are the two sticks of butter. Luckily, what stays are the loads of antioxidant-rich blueberries. Best enjoyed warm, they're sure to be a staple in your baking routine.