The people who make Hallmark’s heartwarming holiday TV movies openly admit that there’s a certain check-the-box formula to the process. It’s the rare genre where repetition and predictability — along with a sugar high of an ending— are totally welcome.

So that has us thinking: Why don’t we take a crack at creating our own? After all, the folks who write the scripts for these festive flicks reportedly earn $50,000 to $60,000 a pop (plus residuals).

To craft a do-it-yourself Hallmark Christmas movie with all the trimmings, simply choose one item from each of the following categories and string them together in a sustainable narrative. For filler, toss in a cookie-baking scene, a frantic sled race or a bloodless snowball fight.

Now grab an eggnog-based cocktail and get to it:

Pick a leading lady

To start, you’ll need a vaguely familiar actress — preferably someone from a TV series once available on VHS and who isn’t currently committed to “Dancing With the Stars”:

— Lacey Chabert (“Party of Five”)

— Candace Cameron Bure (“Full House”)

— Maureen McCormick (“The Brady Bunch”)

— Danica McKellar (“The Wonder Years”)

— Holly Robinson Peete (“21 Jump Street”)

Give her some character

Now assign some attributes and maybe a career path. She can be …

— An unlucky-in-love big-city ad exec

— A jaded, commitment-phobe writer or reporter

— A romance-starved wedding planner

— The Grinch-like CEO of a toy company

— A single mom at a crossroads in life

— A disheartened lawyer stuck with the wrong guy

Provide an idyllic, Christmasy setting

Sorry, Bedford Falls has already been taken. These are the choices you’re left with:

— A quaint, snow-covered hamlet in Vermont

— A quaint, snow-covered hamlet in Colorado

— A quaint, snow-covered hamlet in upstate New York

Set the wheels in motion

Your main character needs to encounter some unforeseen obstacle. So now she finds herself …

— Inheriting her grandpa’s run-down Christmas tree farm (or corner store, or local newspaper)

— Stranded in a blizzard while trying to get home for Christmas

— Butting heads with a former high school rival (or long-lost crush)

— Freaking out over her entry in the town’s gingerbread-house contest

— Meeting an angelic stranger who knocks some sense into her head

— Inexplicably becoming the governess to a princess

Make that love connection

Worried that your story is getting too sappy? Just go with it and have your leading lady fall in love with …

— A sensitive, outdoorsy type in plaid flannel

— Her old crush (and/or an abandoned puppy)

— The family she once walked out on

— A single dad and his adorable kid

— Life in a quaint, snow-covered hamlet

Tack on a cheeky title

Viewers judge a holiday movie by its name. Have some wordplay fun along these lines:

— “A Turn of the Scrooge”

— “Where There’s a Will, There’s a Sleigh”

— “The Plight Before Christmas”

— “Will Yule Love Me Tomorrow?”

— “It’s a Blunder-ful Life”

— “All I Want for Christmas is Hugh”