Rhubarb Muffins with Oatmeal Streusel

Have you ever eaten Rhubarb? One of my first recipes on this blog included rhubarb. After bringing these muffins  to work, I realized this red looking celery plant is not all that well-known.  Not knowing what rhubarb is, also means people don’t “likes” it.  We all know what I am talking about. That weird food that people suddenly…