1. Preheat oven to 350 F degrees. Prepare a muffin pan with liners.In a bowl mix the flour, salt and baking powder together. Set aside.In another bowl mash the bananas, and to them add oil, eggs, sugars, and vanilla extract.
2. Mix together using a whisk.
3. Add yogurt and whisk until everything is well incorporated. Slowly add the flour mixture to the wet mixture and whisk. Do not over mix. Fold in cranberries.Fill the muffin liners evenly with the muffin mixture.
4. Bake for about 20 to 25 minutes or until muffins are golden.