It's unclear if the new muffins are made from scratch or not, but the old ones weren't. Costco bakeries used a pre-made mix ...

Around this era, the mayonnaise muffin began showing up on Southern tables, utilizing another convenience pantry staple, self ...

This simple step is sure to lead to professional, bakery-style muffins. Another tip for making muffins with that signature crunchy topping, like the Blueberry Streusel Muffin at Starbucks ...