There’s something incredibly special about making your own fermented foods. It brings back memories of my grandmother bustling around the kitchen, sharing her secrets and traditions. Today, I’m thrilled to share with you a simple and rewarding recipe for natto, the beloved Japanese fermented soybeans. It’s surprisingly easy to make and packs a nutritional punch!

Why You’ll Love Natto (Japanese Fermented Soybeans)

Fast: You can have the main components prepped and in the oven in about 20 minutes.
Easy: It’s a simple process that even beginner cooks can master.
Giftable: This unique dish is a great conversation starter and a thoughtful gift for friends.
Crowd-pleasing: Even those who think they don’t like fermented foods often find themselves enjoying this creamy delicacy!

Ingredients

1 cup dried soybeans: The star of the show! These little beans are packed with protein and flavor.
1/4 teaspoon natto starter culture: This magical ingredient (Bacillus subtilis) is what gives natto its unique taste and texture.
Water: Essential for soaking and cooking the soybeans.

How to Make Natto (Japanese Fermented Soybeans)

Ready to dive into the world of fermentation? Let’s get started!

Rinse the dried soybeans under cold water and soak them in a bowl of water for 8 to 12 hours, or overnight. This is an important step to ensure the beans soften nicely.
After soaking, drain the soybeans and place them in a large pot. Add fresh water to the pot, covering the soybeans with about 2 inches of water.
Bring the water to a boil, then reduce the heat and simmer the soybeans for about 2 to 3 hours, or until they are tender. Keep an eye on them and add more water if necessary to keep the beans submerged.
Once the soybeans are cooked, drain them and allow them to cool slightly.
In a clean bowl, combine the warm soybeans with the natto starter culture. Mix thoroughly to ensure the culture is evenly distributed.
Transfer the mixture to a shallow container, spreading it out evenly.
Cover the container with a clean cloth or plastic wrap, leaving a small opening for airflow.
Place the container in a warm environment (approximately 100°F or 38°C) for 24 to 48 hours to ferment. I often use a yogurt maker for this, but you can also turn on your oven light to maintain the temperature.
After fermentation, the natto should have a strong aroma and be sticky with a slightly slimy texture.
Refrigerate the natto to stop fermentation. It can be stored in the refrigerator for up to 1 week.

Substitutions & Additions

If you want to experiment a bit, here are some ideas:

Swap out the soybeans for other beans like chickpeas for a unique twist.
Add flavorings like soy sauce or sesame oil after fermentation for an extra kick.
Mix in chopped green onions or a sprinkle of furikake before serving for added texture and flavor.

Tips for Success

Here are a few pointers I’ve learned along the way:

Make sure your equipment is clean. Fermentation relies on good bacteria, so cleanliness helps prevent unwanted flavors.
If you’re new to fermentation, keep notes on your process. It can be helpful for future batches!
Don’t rush the fermentation time; patience is key to getting that perfect natto texture.

How to Store Natto (Japanese Fermented Soybeans)

Once your natto is ready, let it cool completely before transferring it to an airtight container. It will keep in the refrigerator for up to 1 week. If you want to keep it longer, you can freeze it in portions; just be sure to thaw it in the refrigerator before enjoying!

FAQs

Can I use canned soybeans? It’s best to use dried soybeans to achieve the right texture and fermentation process.
What if I can’t find natto starter culture? You can sometimes find it in specialty stores or online. Alternatively, you can use a small amount of store-bought natto to start your culture.
Is natto healthy? Absolutely! Natto is rich in protein, vitamins, and probiotics, making it a nutritious addition to your diet.

Making your own natto is not just a fun cooking project; it’s a way to connect with a tradition that has been cherished for centuries. For more delicious recipes, check out my delightful Japanese apple salad recipe or the cozy potato leek soup recipe for treats you will love!

If you’re eager to explore more about Japanese cuisine, be sure to follow our Pinterest account for inspiration and ideas!