Gourmet Beef Sliders

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If you love a good hamburger, then you are going to flip for these sliders.

These may be cute little sliders, but when you take that first bite, you will not believe the combination of flavors. The rosemary-garlic aioli and caramelized put it all over the top. Perfect for outdoor BBQs and fun gatherings of friends and family.

A pyramid stack of gourmet beef sliders on a wooden cutting board.

How To Make Gourmet Beef Sliders

There is just so much to love about these sliders.

You can also use this recipe for regular-sized burgers.


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The Ingredients You Will Need

To make the best beef sliders of all time, you need to go with top-notch ingredients. Here’s what we recommend:

Butter – Unsalted
Onion – Large white or yellow, sliced
Beef – Ground Wagyu or sirloin are excellent choices, 85% lean is best
Seasonings – Kosher salt and freshly ground pepper is all you need
Sliced cheese – Provolone, gouda, or white cheddar are all great options
Buns – Fresh is best!
Rosemary and garlic aioli – If you can, make it with homemade mayonnaise!

EXPERT TIP: We like to cook the burgers out on our grill. But you can also cook them on a griddle or cast-iron skillet on the stove. Cook to 135°F for medium (slightly pink in the center).

Several beef slider patties on a hot gas grill with smoke coming from below the grates.

Tips for Perfect Gourmet Beef Sliders

Choose the right beef: Use ground beef with higher-fat content, such as 80/20 or 85/15. This will ensure that the sliders are juicy and flavorful. Make sure to season the beef with salt and pepper before forming the patties.

Make the rosemary-garlic aioli from scratch: Making the aioli from scratch will give your sliders a fresh and flavorful taste. Use fresh rosemary, garlic, and high-quality olive oil for the best results. You can also add a little lemon juice or Dijon mustard for extra flavor.

Caramelize the onions: Caramelizing the onions will add a sweet and savory flavor to the sliders. Slice the onions thinly and cook them over low heat with a little butter or oil until they are golden brown and tender. You can also add a pinch of sugar to help them caramelize.

Toast the buns and melt the cheese: To assemble the sliders, toast the buns lightly and melt the provolone cheese on top of the patties. This will add a crispy texture to the buns and make the cheese gooey and delicious. Spread the rosemary-garlic aioli on the buns and top the patties with the caramelized onions. Serve hot and enjoy!

A fork being used to place caramelized onions onto a beef slider topped with melted provolone cheese.

How To Serve

These sliders are always a crowd favorite.

You can prepare the aioli a few hours in advance (just give it a good stir before stirring), and you can make the caramelized onions in advance, too. Reheat on the stove until sizzling.

Get a nice big platter and stack the sliders. You will be amazed at how fast they go.

A close-up view of a slider that consists of a toasted slider bun with rosemary-garlic aioli, beef patty, melty provolone cheese, and topped with caramelized onions.

Other Classic Burger Recipes to Try

Nothing spells good times much more than a juicy, delicious burger. Here are some of our all-time favorites that you’ll want to try:

Rockin’ Black and Bleu Burger
Swiss and Mushroom Burger
Bulgogi Burgers with Kimchi
Epic “Big Mac” Copycat
Curry Turkey Burgers with Grilled Pineapple
Bratwurst Sliders with Beer Cheese
Salmon Burgers
Best-Ever Veggie Burger

These are all absolutely incredible, but in the meantime, isn’t the slider calling your name?

A close-up view of a gourmet beef slider on a toasted bun with a rosemary-garlic aioli sauce, melted provolone cheese, and caramelized onions.

Folks, you just will not believe the flavor of these gourmet sliders.

Epic hardly begins to describe it!

If you want to impress your guests, you must make these burgers. They are incredibly juicy, tasty, and so much fun!

A close-up view of a person holding a beef slider that has a bite taken out of it.

Ready to make the very best sliders in the entire world? Go for it!

And when you do, be sure to take a picture of them, post it on Instagram, and tag @HowToFeedaLoon and hashtag @HowToFeedaLoon!

A pyramid stack of gourmet beef sliders on a wooden cutting board.

Gourmet Beef Sliders

Gourmet Beef Sliders are amazing with caramelized onions, fresh sirloin beef, rosemary aioli, and melty provolone cheese! A guaranteed hit!
5 from 1 vote
Print Pin Rate
Course: American, Entree / Cookout
Cuisine: American
Keyword: burger, how to make aioli, party food recipes
Prep Time: 20 minutes
Cook Time: 45 minutes
Total Time: 1 hour 5 minutes
Servings: 4 people
Calories: 568kcal


  • Gas or charcoal grill, indoor grill, or cast-iron skillet (for the stove)


  • 1 cup rosemary aioli
  • 2 tbsp unsalted butter
  • 3 large onions sliced
  • lbs ground sirloin 85%..formed into 2.5 ounce patties (for sliders)
  • Kosher salt and fresh ground black pepper
  • 8 slices provolone
  • slider buns


Do Ahead

  • Make the rosemary-garlic aioli and refrigerate (covered) for up to 1 day.

Make the Caramelized Onions

  • In a large skillet, melt the butter over medium heat.
    2 tbsp unsalted butter
  • Add the onions and cook until caramelized and browned, about 35 to 40 minutes. A pinch of salt and pepper and stir. Set aside, but keep warm.
    3 large onions

Prep and Cook the Burgers

  • Salt and pepper each side of the patties.
    1½ lbs ground sirloin, Kosher salt and fresh ground black pepper
  • Press an indention with your fingers/thumbs in the center of the patty.
  • Heat your grill to medium heat, or heat your skillet to medium heat.
  • If using your cast-iron skillet, add 1 tablespoon of oil.
  • Once fully heated, add the patties. Cook on one side for about 4 minutes. Then flip. Cook on the other side for about 4 minutes.
  • In the last minute, add the cheese.
    8 slices provolone
  • Meanwhile, slice the buns, butter them, and place under the broiler for about 3 minutes (keep an eye on them! Time varies depending on oven).
    slider buns
  • Remove burgers from heat source.
  • Smear the aioli on each bottom bun. Place the burger on the aioli and then top it with a pile of warm caramelized onions. Place the top bun on the slider and serve at once.
    1 cup rosemary aioli


See the video near the top of the blog post for visual guidance. If you like the video, please subscribe to our YouTube channel
The rosemary-garlic aioli can be made a day in advance. Keep covered in the fridge and stir again before stirring. The onions can be made several hours in advance. Reheat on the stove over medium-low heat until sizzling. 


Calories: 568kcal | Carbohydrates: 13g | Protein: 48g | Fat: 24g | Saturated Fat: 8g | Cholesterol: 184mg | Sodium: 610mg | Potassium: 746mg | Fiber: 2g | Sugar: 7g | Vitamin A: 338IU | Vitamin C: 8mg | Calcium: 471mg | Iron: 4mg
Tried this recipe? Take a Picture!Mention @HowToFeedALoon or tag #HowToFeedALoon!

POST UPDATE: This recipe was originally posted in April 2018, but was updated with improved tweaks to the recipe with new tips and photography and a fabulous new video in May 2023!


  • Hi looks delicious.
    If you have leftovers – how do they serve the next day? Just curious if this is an item I could make the day before then pop in the oven to warm?

    • Hi Leah! They will still be yummy! It would be the same as reheating cooked hamburgers the next day. They’ll lose some of their juiciness, and if you’re reheating, they’ll get cooked a bit more, but these babies are so flavorful, they still be scrumptious. May try a small test batch and then chill them and reheat to see what you think. Hope this helps and let us know how everything turns out!

  • This looks absolutely amazing! Thanks for the aioli recipe – I’ve decided the time has come to bite the bullet and try making my own mayonnaise.

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