Dark, white, and milk are the three commonly known types of chocolate.

In 2017, however, a fourth type was introduced: Ruby chocolate.

The naturally pink chocolate is produced by Belgian-Swiss cocoa company Barry Callebaut.

Sweet and sour

Here are some reviews from people who've tried it:

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Kitkat Ruby ! 💟 Released last monday in the Netherlands! At the Albert Heijn. It's chocolate made from newly discovered Ruby cocoa beans which is a new chocolate flavour after dark, milk and white. It has a fresh berry flavour which taste a bit sweet and sour at the same time. I like the new Ruby Kitkat since I like sweet/sour flavours like yoghurt flavour stuff? 😛 For the people who also got their hands on the new Kitkat, what do you think of it? 8/10 💃

A post shared by Snack Reviewer 🍫 🇳🇱 (@snackreviewer) on Apr 28, 2018 at 2:02pm PDT

For one, it appears to be sweet and sour, apparently comparable to yoghurt-flavoured food.

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711櫻花季獨家販售🌸 🍫#kitkat紅寶石巧克力 $49 使用紅寶石可可豆 純天然的粉紅色澤和莓果香氣 酸酸甜甜又酥脆的口感好好吃🥰 3/13-4/9第二件六折❣️ - #kitkat#kitkatruby#nestle#partipost#chocolate#7eleven#711#rubychocolate#rubycocoabeans#711櫻花季#櫻花季#紅寶石巧克力#巧克力#獨家販售#季節限定#小七#便利商店#便利商店美食#超商#超商美食

A post shared by 韻文 yunwen ♡ (@yunwen.chen) on Mar 18, 2019 at 3:44am PDT

It is also said to taste like berries.

However, another reviewer have also noted that there is little of the cocoa taste familiar to chocolate lovers.

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「 @7eleventw & @kitkat 」 粉紅色的東西真的很難不多看一眼 便利超商特別設置的櫻花粉專區 7-ELEVEN獨家販售的 #KITKAT紅寶石巧克力 光看名字真的很難想像(一開始還以為是櫻花口味） 原來是天然的紅寶石可可豆萃取提煉+無添加色素天然莓果=偏向酸甜口感～ 因該沒有人收集的完#KitKat 全口味吧🥺 我把一半直接吃，另一半就拿就進烤箱啦 （真心覺得烤過的巧克力更酥脆好吃） - 🌸3/13起7-Eleven城市櫻花季獨家開賣，四指包單片售價$49 ～4/9享第二件六折🌸 - ■ 更多資訊 :https://reurl.cc/AgQ5K —————————————————— #雀巢#KitkatRuby#KitKat又出新口味#KitKat#NestleL’Atelier #甜點#巧克力#雀巢巧克力#711櫻花季#冬天必備#休閒零食#NestleLAtelier#高端 巧克力#品味#櫻花季#期間限定#便利商店美食 #taipeifoodie#popyummy#partipost

A post shared by 一個愛吃的人 (@foodnews.tw) on Mar 13, 2019 at 9:51pm PDT

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KitKat in Pink😍😍😍 ik zag deze bij de AH en dacht die moet ik hebben, al is het alleen al omdat het roze is. Maar hij was ook lekker, smaakte gewoon naar de normale KitKat maar dan net iets frisser. #kitkat #kitkatrubycocabeans #kitkatruby #kitkatrubies #pinkkitkat #pink #lovepink #instadaily #instagood

A post shared by ROWENA VAN NIMWEGEN (@rowenavannimwegen) on Jun 10, 2018 at 2:59am PDT

How is it naturally pink?

The company's website explains that the chocolate's pretty colour derives from the ruby cocoa bean.

Ruby cocoa beans are processed from certain cocoa beans that have the prerequisite compounds (not all make the cut, apparently) to consistently produce a pink hue and berry flavour. 

Kit Kat Ruby is available in Singapore from S$2.50 on RedMart, but a special edition one goes for S$8.50 instead.

Top image via @veradokter and @chuuu.zz on Instagram