so where's the recipe?
Not much to it, good quality and a nice sweet cider, put the mulling spices in and simmer
https://www.amazon.com/Masterproofing-Stainless-Steel-Spice-Infuser/dp/B01NCB8SD1 I use these lager ones, I have four of them. I like to add the grated orange peel, then slice the orange and toss it in the pot. I have used tangelos or those little easy peel oranges for kids, they work just as well.
I found four things that are important;
*Good, sweet cider, I think the processed store bought is better for mulling then fresh from a cider mill, tends to be sweeter and have a more intense apple taste. For drinking cold cider I go the opposite, fresh from the mill.
*Good mulling spices, these are all we use
Country Spice Mulling Spices but taste is subjective, I have tried many, but not all of them.
*Use LOTS of spices, for a quart I half full two of those large tea balls, the spices will swell a lot, get too much in and the ball will be packed tight, then the liquid can't flow
through the ball as well to infuse the flavors from the spices.
*Simmer longer then you would think, I like to get it going quicker, I'll turn the burner on high to bring it up hot but not a boil then reduce to a real low and slow simmer, uncovered, it will smell so good!
That's it, quick and easy, set it and forget it. I strain it
through a metal mesh coffee filter to remove the grated peel and any bits of spices that made their way out of the tea ball. I like to mull up a bunch and keep it in the frig so I can nuke it and enjoy it any time. I suppose you probably could freeze it to, I don't know why not, but it doesn't last long enough around here, we drink it up within 2-3 couple days.
Sometimes my wife will mull some wine, I don't drink so I can't say if it's any good or not but she and my Daughter like it.
Oh, one last thing on that brand of spices I linked, you might be able to look around find them in a smaller bag, we get that same brand and type, the loose, in smaller 4 ounce packages at the local mill for $4. They also make it with the spice in paper tea bags, I tried the bags and rather use the loose. That big 2 pound bag would be a better deal (depending on shipping cost) but that much would last me 2-3 years (winters).