Heat in microwave for 30 seconds or on low in small saucepan on the stove for a minute to help dissolve the sugar.
To serve, squeeze straight over the top of your okonomiyaki pancake in zig zag lines. Or pour in a huge dollop in the middle of each pancake, using a basting brush to spread evenly across the top. For best flavour, pair with kewpie mayonnaise, seaweed flakes (aonori) and bonito flakes (katsuobushi). Also goes well on Japanese Hamburgers.If using later, pour into a squeeze bottle or jar to store in the fridge.
Worcestershire Sauce - If using an English version, use the amount in the recipe. If using the Bulldog Japanese Worcestershire Sauce, this is a lot sweeter, so you can double the amount. If Worcestershire sauce isn't available in your area, you can substitute with tonkatsu, A1 steak sauce, HP sauce, soy sauce, mentsuyu or even regular bbq sauce. Of course, this will alter the final flavour, but it won't stop you from devouring your Okonomiyaki pancakes after popping this sauce all over it.
Soy Sauce / Mentsuyu - If you have Mentsuyu or want to make your own, we recommend this in the first instance for a more rounded sauce flavour, otherwise regular soy sauce is fine.
Sugar - Any sugar is fine - we used white, but a brown or raw sugar will work, you may just need a little extra as they're not quite as sweet. Substitute with honey or golden syrup in a pinch.
Storage Bottle - We keep our homemade sauces in squeezy bottles we got from Doguyasuji Arcade in Osaka - these make it so easy to squirt your toppings straight on to the pancakes. We have two, one for the okonomiyaki sauce, and the other for the Kewpie Mayonnaise. If you don't have bottles, sterilised glass jars do just fine as well.
Tweak to Suit Taste - Everyone is different, don't be afraid to alter the amounts if you want a spicier or sweeter sauce.
Batch - While this recipe makes enough for one sitting, feel free to double or even quadruple the recipe for a full bottle of sauce you can keep going back to.
Add Shichimi Togarashi- For an extra spice kick, homemade Japanese 7 Spice is perfect sprinkled over the sauce when dishing up for guests.