Banana Raspberry Muffins

These are perky muffins that are silky and banana-ish in taste but spruced up with ruby red raspberries. Why always raisins and walnuts or chocolate chips when it comes to banana baking? These are also good with frozen rhubarb chunks and banana hunks (see variation). You will be amazed how wonderful banana batter is with tart raspberries thrown in. Now, what about blueberries?