Balsamic Portobello Burger
Grilling adds a hint of smoky flavor and brings out the juiciness of the mushrooms in this Balsamic Portobello Burger.

Ok, it's confession time.
Neither of us had ever had a portobello mushroom burger before this little experiment.
Ever.
But, my suspicion is that many of you are probably sitting there right now thinking that you've never had one either.

A Balsamic Portobello Mushroom Burger
If you're like us, you're thinking, "Ok, from the pictures it kind of looks like a legit burger. And sure, it's a mushroom big enough to fit on a burger bun. But, why would I bother? It's a mushroom for Pete's sake! A mushroom between two slices of bread!"
And yes, we would agree, this is not a crumbly, beefy, 'give-me-my-meat' kind of burger.
But, it is probably the juiciest 'burger' you will ever sink your teeth into.
And, if you're in the 'charcoal grill only' camp, all that beautiful smoky flavor of the charcoal will magically infuse themselves into every single, chin-wiping bite.
This is what veggie burgers are all about.

Balsamic Portobello Burgers
Ingredients
- 4 tablespoon balsamic vinegar
- 4 tablespoon olive oil
- 4 garlic cloves, minced
- ¼ teaspoon ground black pepper
- 4 Portobello mushrooms (look for mushrooms that are thicker with a smaller diameter)
- 4 Sourdough rolls
- Optional toppings: lettuce, tomato, red onion
Instructions
- Combine vinegar, oil, garlic, and pepper in a small bowl.
- Place portobellos,upside down, in a shallow bowl and pour marinade over them. Marinate for 30 minutes while you heat the grill.
- Once the grill is nice and hot, place mushrooms, top-down on the grill grates. Cover, and grill mushrooms for 2-3 minutes, just until marks begin to show.
- Flip mushrooms and grill the second side for 2-3 minutes.
- When mushrooms are nice and hot, place on a split sourdough roll and top with additional veggies as desired.
- Be sure to have an extra napkin handy, these babies get juicy!

Sarah founded Curious in 2010 as a way to save her recipe creations and share culinary experiences. Her love for cultural cuisines was instilled early by her French Canadian Grandmother. Her experience in the kitchen and in recipe development comes from over 10 years working in professional kitchens. She has traveled extensively and enjoys bringing the flavors of her travels back to create easy-to-make recipes.




Those are good looking and yummy burgues.
I love doing this at BBQs! I get a lot of jealous looks too
Love this ! Eaten portabella burgers out but never made them. Will have to try this recipe ! Yummm ! Lovely pics !
I love portobello burgers and yours looks so, so good!
I need to break out the grill soon--I've missed a couple of seasons, but one of my favorite things is to grill portobellos. They're so perfect when grilled, half the time I don't even bother with the bun lol
I would love to try these mushroom burgers! Mushrooms and balsamic is my favorite flavor combo, and mushrooms have so many amazing health benefits.
I love, love,love Portobello burgers - so juicy and delicious. Thank you so much for sharing! ~ Bea
I've never had a portobella burger either but they have always looked really delicious. Next time I see some I'm snapping them up to try.
Oh, my little vegan will LOVE this recipe!
Smokey flavor you said! I want and I wished I could get those mushrooms here. The marination sounds just about perfect and your veg burger looks very presentable. Somebody needs to introduce it to the vegetarians here. Thanks for sharing!
yum, the Portobello burgers look divine and beautiful, and yes, they do look like legit burgers but much healthier 😉
I'm never tried one either, but I'm completely inspired! What a beautiful presentation and photo... looks delicious!
It was just the other day when I was having a discussion with a friend about mushrooms and using portobello ones for burgers. I'm sending this recipe to her for sure. I'll bet she will make it in a heartbeat because she loves mushrooms and balsamic vinegar.
I looooove Portobello burgers! Great choice!
it´s time I tried a portobello burger too. It does look amazing in your pics! Maybe with a little chimichurri...