Simple, Fruit-Filled Muffins OU Kosher Staff November 19, 2018 Have perfect muffins ready in a matter of minutes with this simple recipe. OU Kosher Staff Related Articles Case Studies Company Profiles Ethanol: From Corn to Kosher Vinegar Behind the Scenes Consumer Kosher Articles How is Cheese Made Kosher Industrial Kosher Articles Kosher in the Factory Online and On Site: A Hybrid OU Kosher Plant Inspection at Angel Yeast in China