It’s really easy to overdo any one of these seasonings and accidentally overbear the entire sauce.
So when you’re making it for the first time, follow the recipe exactly.
Even if you’re a horseradish lover, don’t throw in an extra tablespoon (yikes!) because you want more of that flavor.
Instead, mix it all up, let it sit, and then taste test to see if you want more of any of the spices. All of those flavors get stronger with time, so you gotta trust the process!
- What should you serve it with?
Blooming onion sauce is an absolute must for anything fried — even fried pickles. So regular fries, of course, and onion rings!
It’s actually great on sandwiches and wraps, too. A crispy chicken sandwich, in my opinion, is just begging for the stuff!
Storing and Serving Bloomin Onion Sauce
I can’t recommend getting one of your own sauce bottles enough!
Not only does it make serving easier, but it’s also easier to just give the bottle a good shake before serving.
This Outback bloomin onion sauce keeps in the refrigerator for up to a week.
Again, give it a good shake or stir before serving after storing — and don’t let it come to room temperature!
Kitchen Tools You Will Need
- Measuring Cups and Spoons – You may be tempted to eyeball the amounts, but I recommend using the proper tools so it comes out just right.
- Whisk – These have held up for over 10 years and are still as good as the day I bought them. With 3 sizes, there is a whisk for every job!
- Mixing Bowls – I like to have a variety of sizes on hand, and this set has them all.
Outback Bloomin Onion Sauce Recipe FAQ
How can I make bloomin onion sauce thicker?
A little more sour cream than mayonnaise makes for a thicker mixture.
To thicken without altering the flavor much at all, mix ½ teaspoon of xanthan or guar gum into the sauce. Remember that it may thicken a bit as it sits in the fridge, so don’t go overboard!
How to make blooming onion sauce without horseradish?
The best substitutes for horseradish are regular yellow mustard, spicy brown mustard, and wasabi. Regular mustard is the mildest substitute whereas wasabi is the hottest.
Can I make bloomin onion sauce ahead of time?
Absolutely. And you should, because it only becomes more delicious with time! All of these dried and powdered seasonings need a minute to really release their flavor once they’re introduced to the moist mixture.
That’s why I instruct to let the mixture refrigerate for at least 30 minutes… but honestly, longer is better. I tend to mix it up the night before if I’m serving it with lunch, or the morning before if I have it planned for dinner.
Enjoy!
