The only thing I steep is my tobacco mixes. I actually use a crock pot on tobacco... 4 hours in a crock pot at 150 degrees then I let it sit for about a week. Then it's ready. Everything else I vape right away. Even custards. I've learned if it's good it will taste descent when you make it. Steeping sometimes will make good juices better. But if something tastes rancid, no amount of steeping I've done makes it taste any better. Sometimes steeping will mute flavors, giving people the misconception that their juice tastes better with steeping but honestly it's just muting a flavor that probably needed tweaking.
So... all of my recipes, and I have many, are doable right away, except for tobaccos.