These blueberry banana muffins have been lightened up but still include some butter for flavour and texture. Sugar has been reduced to half a cup, again for texture, but if you are particularly worried about added sugars you can replace this with a baking stevia blend which is discussed more in the FAQ Section below. It’s important to use a specific baking sugar substitute if you choose to replace the sugar, since it is an important structural element of these muffins. Key Ingredients