Is daikon safe for babies?

Yes - cooked daikon is very safe and gentle for babies. Raw daikon has a mild peppery bite, but cooking transforms it into something mild and sweet. Always serve it cooked and pureed for 5-6 month olds.

What is kombu dashi and where do I buy kombu?

Kombu is dried kelp seaweed. Soak it in cold water for 30 minutes and you have dashi - no cooking needed. Find kombu at Japanese or Asian grocery stores, or online. It keeps for months in your pantry.

Why kombu dashi rather than bonito dashi here?

This is an early-stage recipe (around 5-6 months), and kombu (kelp) dashi is vegetarian and fish-free, making it the gentle first stock for young babies. Bonito-based dashi introduces fish, so it is usually held until the middle stage once fish has been introduced. Kombu dashi still adds lovely umami without any salt.

Can I freeze this daikon and potato puree?

Yes. This puree freezes well - portion it into an ice-cube tray or small containers and freeze for up to about a month. Thaw and reheat thoroughly, stirring in a little extra kombu dashi or water to loosen it back to a smooth consistency before serving.

5-6 monthsEarly Stage (5-6 months)

Daikon and Potato Puree with Kombu Dashi

Name: Daikon and Potato Puree with Kombu Dashi
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Yield: 6 portions
Cuisine: Japanese
Ingredients: 50g daikon radish, peeled and sliced; 50g potato, peeled and diced; 1/2 cup (120ml) kombu dashi (cold-brew: soak 5cm kombu in water for 30 min, remove kelp); Extra water as needed

Jump to Recipe

Daikon (Japanese white radish) is one of the most versatile vegetables in Japanese cuisine - pickled, simmered, grated, or eaten raw. For babies, it is introduced cooked and pureed, as cooking transforms daikon's mild pungency into a sweet, mellow flavor. Japanese mothers often pair daikon with potato because the combination creates a naturally thick, smooth puree without any added thickeners. The kombu dashi base - made simply by soaking dried kelp in cold water - provides a mineral-rich, allergen-free umami that is considered the purest form of Japanese flavoring for babies.

Mild and soothing daikon radish paired with creamy potato, simmered in kombu dashi. A gentle introduction to the delicate umami flavors at the heart of Japanese cooking.

Prep 10 minCook 20 minServes 6 portionsEasy

Ingredients

50g daikon radish, peeled and sliced
50g potato, peeled and diced
1/2 cup (120ml) kombu dashi (cold-brew: soak 5cm kombu in water for 30 min, remove kelp)
Extra water as needed

Ingredient Substitutions

Can't find Japanese ingredients? Here are alternatives available at most supermarkets.

Daikon → turnip or parsnip (similar mild flavor when cooked)
Kombu dashi → plain water (flavor will be milder but still nutritious)
Potato → sweet potato for a sweeter variation

Instructions

01Prepare kombu dashi if not already done: soak a piece of kombu in cold water for at least 30 minutes, then remove the kelp.
02Place daikon and potato in a small pot with the kombu dashi.
03Bring to a gentle boil, then reduce heat and simmer until both vegetables are completely tender, about 15-20 minutes.
04Reserve the cooking liquid.
05Transfer vegetables to a blender and blend, adding cooking liquid to achieve desired consistency.
06For 5-month-olds, blend very smooth. For 6-month-olds, a slightly thicker texture is fine.
07Strain through a sieve if needed. Cool to body temperature before serving.

Tips from a Dietitian Mom

Cold-brew kombu dashi is the easiest method - no cooking required. Just soak and use.
Potato provides a natural creamy thickener - no need to add oil or dairy.
Daikon has a very subtle flavor when cooked; if baby resists, try mixing with a little kabocha or sweet potato puree.
The kombu in dashi contains natural iodine - important for thyroid function in growing babies.

Storage & Freezing

Refrigerate for up to 24 hours. Freeze in ice cube trays for up to 2 weeks. Note: potato-based purees can become slightly grainy when frozen - blend briefly after thawing to restore smoothness.

Master the Basics

Preparing Vegetables the Japanese WayThe foundational vegetable prep techniques of Japanese cooking - blanching, removing bitterness, peeling and chamfering, and pureeing - and how each one carries over directly into making baby food.

Nutrition Facts

Per serving (approximate)

Calories18

Protein0.5g

Carbs4g

Fat0g

Frequently Asked Questions

Is daikon safe for babies?: Yes - cooked daikon is very safe and gentle for babies. Raw daikon has a mild peppery bite, but cooking transforms it into something mild and sweet. Always serve it cooked and pureed for 5-6 month olds.
What is kombu dashi and where do I buy kombu?: Kombu is dried kelp seaweed. Soak it in cold water for 30 minutes and you have dashi - no cooking needed. Find kombu at Japanese or Asian grocery stores, or online. It keeps for months in your pantry.
Why kombu dashi rather than bonito dashi here?: This is an early-stage recipe (around 5-6 months), and kombu (kelp) dashi is vegetarian and fish-free, making it the gentle first stock for young babies. Bonito-based dashi introduces fish, so it is usually held until the middle stage once fish has been introduced. Kombu dashi still adds lovely umami without any salt.
Can I freeze this daikon and potato puree?: Yes. This puree freezes well - portion it into an ice-cube tray or small containers and freeze for up to about a month. Thaw and reheat thoroughly, stirring in a little extra kombu dashi or water to loosen it back to a smooth consistency before serving.