Mix together dry ingredients. Beat ... 3 tablespoons into microwave muffin cups lined with papers. ... Refrigerate batter up to 3 days. Makes 18 muffins.
In large bowl, combine butter, oats, flour, brown sugar, eggs, walnuts and vanilla. Beat 3 minutes ... in 8" square microwave baking dish; cover dish with ... 8 to 10 servings.