This reminds me of the Imagination Movers episode, Muffin Man, where a baker named Ben managed to bake the perfect muffins using strawberries as his special ingredient but later forgot about it so with some help and research from the Movers, managed to remember that the special ingredient was strawberries. The ingredients for these particular muffins were mentioned to be flour, milk, eggs, sugar and strawberries. There were also other muffins made in the episode, each with a different fifth ingredient; cantaloupe, grapes, guava, papaya, pear and pomegranate. I actually like adding mashed/crushed fruit in muffin batter and this TV show’s episode gave me that idea so I’m planning to bake these types of muffins someday.