Slices you can drink, down South St West

A girl drinks a pie shake at Magpie.

If you want to witness mad science in a Mason jar, you go to the Mütter Museum, but if you want to taste some, make your way to the baking-hot ladies of Magpie, where they're opening the lid on their first-ever warm-weather menu of custardy pie milkshakes. That's right: pie milkshakes. Just click on the girl above to start the slideshow and find out exactly why she's smiling. It might have something to do with butterscotch bourbon slices mixed up and creamated into 10oz of Bassetts.

a pie coming out the oven at Magpie

Before you can get your mitts on this latest hotness, Magpie's bakers spend two days making each pie oven-ready.

You ready to suck it up?

A knife slicing into a pie at Magpie

That guarantees that flavors like chocolate coffee cinnamon pecan, coconut custard, and Spodee (!) are always a cut above.

A scoop of Bassetts ice cream spooned into the shake at Magpie

Next comes 10oz of ice cream, aka about as many scoops as went into today's Daily News.

Milk being added to the Magpie pie shake

... and no more than a half gallon of milk.

Chopped pie's scraped into the pie milkshake at Magpie

Pro tip: Always scrape the pie away from you so you don't lose a button.

Pie and ice cream before it's blended at Magpie

Then: science!

A caramel drizzle lines the Ball jar before the pie shake's poured in

Forgot to add caramel? Just fill your glass with it.

Magpie's pie shake is poured into a Ball jar.

This last step requires Balls.

Chopped pie at Magpie

Because that clearly isn't enough, shakes are topped off with a final helping of filling.

The apple pie shake at Magpie.

Before you're left with this final filling helping.