Stir together flour, brown sugar, baking powder, cinnamon, and salt. Set aside.
In large bowl, or stand mixer, combine cereal and milk. Let stand for 5 minutes to soften the cereal. Add beaten egg, oil, and rind. Mix well on low. Add flour mixture, stirring until just combined. Until you cannot see the flour anymore. Fold in optional dried cranberries.
Preheat oven to 350F. Pour batter in greased, or silicon lined, 9X5 loaf pan. Bake for 50 minutes until done. Test with toothpick. Let rest in pan 10-15 minutes. Remove from pan and let cool completely on rack.
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