Turkish Delight: The Science and Global History of Lokum

SPEAKER_1 (0:00)

I have a question for you, and I really want you to think about it. What specific sweet treat was tempting enough to make a kid literally betray his entire family in CS. Lewis's classic book, The Lion, the Witch and the Wardrobe?

SPEAKER_2 (0:15)

That is a pretty serious level of temptation, honestly.

SPEAKER_1 (0:18)

Right? I mean, think about that. We are talking about a candy so alluring, it basically causes a fictional geopolitical meltdown.

SPEAKER_2 (0:26)

High treason for a snack.

SPEAKER_1 (0:29)

Exactly. But here is the craziest part.

That exact same treat is actually the ancient culinary ancestor of the modern day jelly bean.

SPEAKER_2 (0:38)

Which is quite the resume for a single confection, if you ask me.

SPEAKER_1 (0:41)

For sure.

SPEAKER_2 (0:42)

Moving from causing treason in a magical wardrobe to, you know, inspiring the chewy candy you find in a plastic Easter egg is quite a trajectory.

SPEAKER_1 (0:51)

We are, of course, talking about Turkish delight, also known globally as locum. And if you're listening to this right now and thinking that Turkish delight is just like that dusty, overly-perfumed cube you get in a cheap assorted box at the holidays.

SPEAKER_2 (1:05)

Please erase that from your mind entirely.

SPEAKER_1 (1:08)

Yes. Because today on The Deep Dive, we are going to look at how a very specific chemical reaction between sugar and starch actually conquered the globe.

SPEAKER_2 (1:17)

Because we live in an era where we often think of candy as just a quick, disposable sugar fix and a crinkly wrapper.

SPEAKER_1 (1:24)

Yeah, just empty calories.

SPEAKER_2 (1:26)

Right. But authentic locum is holding on to a thousand year history.

We are talking about a food that traces the rise and fall of empires.

SPEAKER_1 (1:35)

Wow.

SPEAKER_2 (1:36)

It maps out the establishment of ancient trade routes and it's tied to these profound cultural rituals of hospitality that are still very much alive today.

SPEAKER_1 (1:45)

So let's start with the physical candy itself. Because before we can talk about empires, we have to talk about what we're actually putting in our mouths.

SPEAKER_2 (1:53)

We have to understand the chemistry.

SPEAKER_1 (1:54)

Exactly. And I think a lot of people assume this is basically a gummy bear. You know, they assume it's made with animal gelatin.

But it's not.

SPEAKER_2 (2:02)

Not at all. If you are eating authentic Turkish delight, there is absolutely no animal gelatin involved.

SPEAKER_1 (2:08)

So it's vegan, basically.

SPEAKER_2 (2:10)

Basically, yeah. The anatomy of Lokum is brilliant in its simplicity, but it requires extreme precision to execute properly.

SPEAKER_1 (2:18)

Okay, so what's in it then?

SPEAKER_2 (2:19)

At its absolute core, it is a gel created strictly from a delicate balance of starch and water, heavily saturated with sugar.

SPEAKER_1 (2:27)

Wait, a gel without gelatin? How does that even work?

SPEAKER_2 (2:31)

It's fascinating.

SPEAKER_1 (2:32)

Because if you just mix cornstarch, sugar, and water, you get like a murky puddle, not a chewy candy.

SPEAKER_2 (2:38)

Well, it comes down to a process called gelatinization. When you heat starch in water, the starch granules actually begin to swell.

SPEAKER_1 (2:46)

Oh, so they expand with the heat.

SPEAKER_2 (2:49)

Right. And as the temperature rises, those granules eventually burst open. And when they burst, the starch molecules spill out and tangle together.

SPEAKER_1 (2:57)

Huh.

SPEAKER_2 (2:58)

And that creates a massive microscopic web, or like a net.

SPEAKER_1 (3:02)

So it's like a microscopic sponge.

SPEAKER_2 (3:05)

The tangled starch is the sponge, and it's trapping the sugar syrup inside its structure.

SPEAKER_1 (3:09)

That is a perfect way to visualize it.

SPEAKER_2 (3:12)

And that microscopic sponge is what gives the candy its unique physical properties.

SPEAKER_1 (3:16)

Because it's really soft, but it doesn't just fall apart.

SPEAKER_2 (3:19)

Exactly. Its white doesn't snap like a hard candy, but it also doesn't melt instantly like chocolate.

SPEAKER_1 (3:24)

Right.

SPEAKER_2 (3:25)

It yields beautifully to the bite, but maintains a distinct chewiness because your teeth are quite literally pressing through that web of trapped syrup.

SPEAKER_1 (3:33)

And because that sponge is essentially a blank canvas, it can hold on to some incredibly intense flavors.

SPEAKER_2 (3:39)

Very intense.

SPEAKER_1 (3:40)

But looking at the traditional ingredient list, I mean, it reads more like an apothecary from a thousand years ago than a candy shop.

SPEAKER_2 (3:47)

It really does.

SPEAKER_1 (3:47)

You get rosewater, bergamot orange, lemon, cinnamon, and then there's mastic gum. Isn't mastic gum essentially pine resin?

SPEAKER_2 (3:58)

It is, yeah.

SPEAKER_1 (3:59)

That sounds like I'm eating household cleaner, not a luxury dessert. Why would they use tree resin?

SPEAKER_2 (4:05)

I know it sounds jarring to a modern palette, but mastic gum is a really fascinating ingredient. It's a resin obtained from the mastic tree, famously from the Greek island of Chios.