This is a straightforward blue cheese sauce built from mayonnaise, buttermilk, white wine vinegar, and a full 8 ounces of blue cheese crumbles — no cooking required, just five minutes of mixing. The honest reason to make it: it’s significantly sharper and creamier than anything from a bottle, and it holds up on a burger without turning the bun to mush.
The technique that matters
The only real technique here is the order of mixing. Combine the mayonnaise, buttermilk, vinegar, salt, and pepper first and get them fully blended before the cheese goes in. If you add the blue cheese to unmixed ingredients, the crumbles break down unevenly — some dissolve completely, some stay in large chunks, and you lose control of the texture. Once the base is smooth, stir the blue cheese in gently. Leave some visible crumbles; that’s what gives you pockets of sharp flavor rather than a uniform paste. For a cookout batch, this scales cleanly — just multiply every ingredient by the same factor and use a large bowl so you have room to stir without splashing.
Make-ahead notes
This sauce is actually better after a few hours in the fridge. Make it the morning of your cookout and the flavors tighten up considerably. It keeps well covered in the refrigerator for up to 4 days — the buttermilk and vinegar help preserve it. Do not freeze it; mayonnaise-based sauces break when frozen and thawed, leaving a greasy, separated mess. When pulling it from the fridge, give it a quick stir before serving since the buttermilk can settle slightly. If it looks thicker than you’d like after chilling, a small splash of buttermilk stirred in brings it right back.
What can go wrong
- Sauce is too thin: Buttermilk varies in thickness by brand. If your sauce is runny, add mayonnaise a tablespoon at a time until it reaches a consistency that clings to a spoon without dripping off immediately.
- Blue cheese flavor is too mild: Pre-crumbled blue cheese from a bag loses pungency faster than a block you crumble yourself. Buy a wedge and break it up by hand for noticeably stronger flavor.
- Sauce tastes flat: White wine vinegar is doing real work here — skip it or undercount it and the sauce tastes heavy and one-dimensional. Measure it properly rather than eyeballing.
- Too salty for the crowd: Blue cheese is already high in sodium, and the recipe adds a half teaspoon of salt on top. Taste the sauce before serving and hold back on the added salt if your cheese is particularly briny — this is the one adjustment worth making when scaling up for a group.
- Sauce slides off the burger: Apply it to the top bun interior, not directly on the patty. It stays put better and doesn’t steam off from the heat of the meat.
Blue Cheese Sauce for Burgers (5-Minute No-Cook Recipe)
Equipment
- Large mixing bowl
- Silicone spatula or wooden spoon
- Measuring cups and spoons
- Airtight storage container
Ingredients
- ¾ cup mayonnaise 180g
- ¼ cup buttermilk 60ml
- 1 tablespoon white wine vinegar 15ml
- 1 teaspoon black pepper
- ½ teaspoon salt
- 8 ounces blue cheese crumbles 225g
Instructions
- Add the mayonnaise, buttermilk, white wine vinegar, salt, and black pepper to a large mixing bowl. Whisk or stir until the mixture is completely smooth with no visible streaks of buttermilk remaining.¾ cup mayonnaise, ¼ cup buttermilk, 1 tablespoon white wine vinegar, 1 teaspoon black pepper, ½ teaspoon salt
- Gently fold in the blue cheese crumbles using a spatula or spoon. Stir just enough to distribute evenly — leave some visible chunks for pockets of sharp flavour. Avoid over-mixing or the cheese will break down into a uniform paste. Cover and refrigerate for at least 30 minutes before serving for the best flavour. Give it a quick stir before serving, as the buttermilk may settle slightly.8 ounces blue cheese crumbles
Notes
- If you don’t have buttermilk, add 1 tablespoon white wine vinegar or lemon juice to ¼ cup whole milk, stir, and let sit for 5 minutes before using.
- Gorgonzola gives a creamier, milder result; Roquefort or Stilton push the sharpness higher. Gorgonzola is the safest pick for a mixed crowd.
Nutrition
Common questions
Which blue cheese works best in this sauce?
Gorgonzola gives you a creamier, milder result; Roquefort or Stilton push the sharpness much higher. For a cookout where you’re feeding a mixed crowd, Gorgonzola is the safer pick — it’s assertive enough to come through on a burger without overwhelming people who are on the fence about blue cheese.
Can I make this without buttermilk?
Yes — add one tablespoon of white wine vinegar or lemon juice to a quarter cup of whole milk, stir, and let it sit for five minutes. It won’t be identical, but the texture and tang are close enough that most people won’t notice the difference in a finished sauce.
How far ahead can I make this for a cookout?
Up to 24 hours ahead is the sweet spot — the sauce is fully developed and still at its best texture. Beyond 48 hours the buttermilk starts to dominate the flavor and the crumbles soften too much, so don’t push it further than that even though it’s technically safe for four days.
What to cook next
- Angus Bacon Guacamole Burger
- Perfect Bacon Double Cheeseburger
- Ultimate Avocado Bacon Smash Burger
- BBQ Cheeseburger Recipe