Every time I make banana bread I mix a duplicate batch of the dry ingredients in a large zip lock bag. The wet ingredients and instructions are written with a sharpie on the bag and then it goes into the freezer.
When the mood hits or I need a last minute food gift, I stir the wet ingredients into my dry mix and bake. Quick and easy.
The instructions I write aren't fancy; there is just enough info to get the mix from bowl to oven to cooling rack. It sure saves me time (and no mess because I don't have to haul out the flour, sugar, etc etc, measuring cups and spoons, etc etc.)
Here's the original recipe. I increased the banana in mine out of personal preference, but I just measure the dry ingredients into a zip lock bag every time I make a batch. I do this with other recipes, too, like muffins, brownies, pancakes, etc.
It's kind of like making your own Bisquick, only customized for a specific recipe. A homemade dry mix could be stored in a pantry, but because it contains no preservatives, I recommend storing it in the freezer to prevent rancidity and bugs from spoiling it.
