Ever baked cakes in canning jars? It's neat! ANY quick bread-type cake can be baked in canning jars. Lighter cakes tend to fall once the jar seals. I usually bake one jar first -- you have to know how high the batter rises. I usually fill ONE jar 1/2 full then bake it to see how high it rises, then go from there. You don't want the cake to come out of the top of the jar, only to within 1/4 to 1/2 inch from the lip of the jar. Write it down on your recipe (how far you filled the jars)! Once you've established how high the cake rises, you can go from there. The first time around is a bit tricky because you won't know how many jars you'll need. MOST of the recipes I've tried I end up using around 8. Sterilize as many jars as you think you'll need and go from there. Make sure your LIDS are new, the rings don't ha ve to be As the jars do seal, the cakes are as moist as the day you put them into the jars--sometimes MORE SO. The baking times will vary.