Preheat oven to 375 F. Lightly grease a muffin tin.
In a large mixing bowl, mix together flour, sugar, baking powder, baking soda and salt. Make a well in the center and add canola oil, orange juice, zest and vanilla. Mix just until all wet ingredients are moistened. About 1/2 way through mixing add the cranberries and nuts.
Fill muffin tins 3/4 full and bake for 23 to 27 minutes, until lightly browned on top and a toothpick or knife inserted through the center comes out clean. When cool enough to handle, transfer to cooling racks to cool completely.