Discover the Delight of Thai Red Rubies Dessert: Tub Tim Krob | Crispy Ruby Pudding Recipe
Ever had one of those moments when a dish brings back a flood of memories? For me, that dish is Tub Tim Krob, or Thai Red Rubies Dessert. Every time I prepare this delectable treat, the aroma of the coconut cream transports me to my grandmother’s kitchen, where laughter and warmth filled the air. As a child, I would watch her shape the vibrant red water chestnut rubies, and I still remember the thrill of tasting them for the first time—sweet, crunchy, and oh-so-refreshing!
What makes this Thai Red Rubies Dessert truly special is its unique combination of flavors and textures. The sweet, creamy coconut syrup pairs perfectly with the crunchy, ruby-hued water chestnuts coated in a chewy, tapioca flour crust. Unlike many desserts that can be overly sweet or heavy, Tub Tim Krob is a refreshing balance that leaves you longing for more.
This recipe isn’t just a fruit of my culinary creativity; it’s a family treasure I’ve perfected over the years. I promise you’ll find that making these beautiful delights is simpler than you think, and the result is guaranteed to impress. So roll up your sleeves, grab your apron, and let’s dive into the world of Thai Red Rubies Dessert!
What Are Thai Red Rubies?
Thai Red Rubies Dessert, or Tub Tim Krob, is a traditional Thai dessert that boasts a vibrant appearance and delightful textures. Originating from the bustling streets of Thailand, it features crunchy water chestnuts, which are boiled and coated in a chewy tapioca flour skin, then dyed red for that signature "ruby" look.
The name itself literally translates to “ruby tappers,” symbolizing how these little gems mimic the precious stones. When you bite into them, the slightly sweet exterior gives way to a crunchy texture, followed by the creamy richness of the coconut syrup—an experience that dances on the palate.
These charming desserts are perfect for any occasion, whether you’re celebrating a holiday, hosting friends, or simply seeking a satisfying treat to enjoy at home. One taste, and you’ll understand why this dish has captured hearts around the world!
Why You’ll Love This Recipe
Here are a few reasons why this Thai Red Rubies Dessert Recipe | Tub Tim Krob | Crispy Ruby Pudding will become a favorite in your rotation:
Unique Textures: The contrast between the crunchy water chestnuts and the smooth coconut syrup creates an unforgettable mouthfeel. You won’t find this combo available in stores!
Cost-Effective: Compared to other desserts, this recipe uses simple and affordable ingredients, which means you can make a large batch without breaking the bank.
Customize to Your Taste: Want to switch things up? You can modify the flavors with different food colors or even experiment with the syrup by adding flavors like pandan or lemongrass.
Easier Than You Think: While it looks impressive, this recipe is quite easy! With a little prep and patience, you’ll be a pro at making these beautiful rubies in no time.
Perfect for Sharing: This dessert is ideal for gatherings. Its unique presentation and refreshing flavor can win over any crowd, making it a stellar conversation starter.

Ingredients
For this delightful Thai Red Rubies Dessert, you will need:
- 3 cups coconut cream: For the creamy sweetness (recommendation: Aroy-D or Chaokoh).
- 3 pandan leaves (bruised): Adds a fragrant note to the syrup.
- 1 pinch salt: Balances the sweetness.
- 2 cups sugar: Essential for sweetening the syrup.
- 3 cups diced water chestnut: The star ingredient for that crunchy texture.
- 1 teaspoon liquid red food color: To achieve the iconic ruby color.
- 1 teaspoon water: To dissolve the food color.
- 2 cups tapioca flour: This is what gives the rubies their chewy exterior.
Notes on Ingredient Quality and Prep:
- Make sure your water chestnuts are fresh to ensure the best crunch.
- Opt for high-quality coconut cream, as this will significantly boost the flavor of your dessert.
- It’s best to let ingredients come to room temperature, especially the coconut cream, to ensure a smooth mixture.

Step-by-Step Instructions
Preparation of Coconut Syrup
- Combine Ingredients: In a saucepan, mix 3 cups of coconut cream, bruised pandan leaves, salt, and sugar.
- Heat: Cook over low heat until the sugar fully dissolves, taking care not to boil. You want a smooth, sweet syrup.
- Taste: Adjust the sweetness according to your preference and set aside.
Making the Red Rubies
- Prepare Water Chestnuts: In a bowl, mix the diced water chestnuts with the red food color and the teaspoon of water until well coated. Allow them to absorb the color for about 10 minutes.
- Coat with Tapioca Flour: In another bowl, toss the water chestnuts in the tapioca flour until evenly coated.
- Cook: Boil water in a large pot. Carefully drop the coated water chestnuts into the boiling water, cooking until they float—about 5-7 minutes. Remove and drain.
To Serve
- Plate: Add a generous spoonful of coconut syrup to a serving dish, then top with the ruby water chestnuts.
- Garnish: Drizzle a bit more syrup on top and consider adding fresh fruit or mint for a pop of color.
Chef’s Tip: Ensure your water chestnuts are well-coated in flour to achieve that perfect chewy texture.
Expert Tips & Tricks
- Storage: Store any leftovers in an airtight container in the fridge for up to 3 days. The texture may change slightly, but they’ll still be delicious!
- Make-ahead: You can prepare the coconut syrup a day in advance and store it in the fridge; just give it a stir before serving.
- Troubleshooting: If your rubies don’t achieve that desired chewy texture, they may need a little extra time in the pot—keep them boiling until they float before removing.
- Avoid Overcooking: Keep an eye on the water chestnuts; overcooking can make them mushy instead of perfectly crunchy!
- Presentation Matters: For special occasions, consider serving these in small individual cups or as part of a dessert platter.
Serving Suggestions
This delightful dessert is best enjoyed chilled. Pair it with fresh seasonal fruits like mango or berries for a colorful plate. You can serve it at festive gatherings or casual weekend get-togethers—it’s versatile enough for any occasion! To elevate the presentation, try adorning each dish with a sprig of mint for an alluring touch.
Variations & Substitutions
Don’t be afraid to switch things up! Here are some ideas to keep it fresh:
- Flavored Syrups: Use other flavors like pandan or purple yam for a different taste.
- Dietary Adjustments: For a vegan version, ensure all products are plant-based, and replace sugar with a suitable alternative like agave syrup.
- Seasonal Fruits: In the summer, try adding diced dragon fruit or serve alongside coconut ice cream for an exciting dessert experience.
Nutrition & Storage Info
- Prep Time: 30 minutes
- Cook Time: 15 minutes
- Total Time: 45 minutes
- Yield: About 6 servings
- Estimated Calories per Serving: 250 kcal
- Storage Instructions: Keep in the fridge for up to 3 days. You can also freeze the ruby water chestnuts for up to a month, although the texture may alter once thawed.
FAQ Section
1. Can I use other colors for the water chestnuts?
Absolutely! Feel free to experiment with different food colors for fun variations.
2. What if I can’t find fresh water chestnuts?
You can use canned water chestnuts as a substitute, although the texture might be slightly different.
3. How can I make this dessert healthier?
Consider using less sugar or a sugar substitute to reduce calories while still getting that sweet flavor.
4. Can I serve this warm?
While it’s traditionally served chilled, you can enjoy it warm with coconut syrup for a comforting treat.
5. What’s the best way to store leftover coconut syrup?
Store it in an airtight container in the refrigerator, where it will keep for about a week.
6. Can I add any toppings?
Definitely! Some toasted coconut flakes or fresh berries make excellent toppings.
7. What’s the texture of the water chestnuts supposed to be?
They should be crunchy and slightly chewy after cooking, resembling actual rubies!
8. How far in advance can I prepare this dessert?
You can make the components a day in advance, but it’s best served fresh for the perfect texture.
9. Are there any alternatives to coconut cream?
You may substitute coconut cream with coconut milk; just note that it will be slightly less rich.
10. Can children help with this recipe?
This is a fun recipe for kids; they can help coat the water chestnuts in flour or pour the coconut syrup.

Conclusion
This delightful Thai Red Rubies Dessert Recipe | Tub Tim Krob | Crispy Ruby Pudding is not just about taste; it’s about the memories and the joy of sharing something special with your loved ones. I hope this recipe brings as much joy to your family as it has to mine! Don’t forget to share your thoughts and feedback in the comments. If you’re also interested in other fun and flavorful Thai delicacies, check out my collection on the blog!
And there you have it! Get ready to impress everyone with your culinary prowess and enjoy every scrumptious bite of Thai Red Rubies!

Tub Tim Krob
Ingredients
Method
- Combine Ingredients: In a saucepan, mix 3 cups of coconut cream, bruised pandan leaves, salt, and sugar.
- Heat: Cook over low heat until the sugar fully dissolves, taking care not to boil. You want a smooth, sweet syrup.
- Taste: Adjust the sweetness according to your preference and set aside.
- Prepare Water Chestnuts: In a bowl, mix the diced water chestnuts with the red food color and the teaspoon of water until well coated. Allow them to absorb the color for about 10 minutes.
- Coat with Tapioca Flour: In another bowl, toss the water chestnuts in the tapioca flour until evenly coated.
- Cook: Boil water in a large pot. Carefully drop the coated water chestnuts into the boiling water, cooking until they float—about 5-7 minutes. Remove and drain.
- Plate: Add a generous spoonful of coconut syrup to a serving dish, then top with the ruby water chestnuts.
- Garnish: Drizzle a bit more syrup on top and consider adding fresh fruit or mint for a pop of color.







