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Beef burgers with bacon, horseradish mayo & fried onions are seriously delicious and easy to make.

beef burger on a bun with bacon, horseradish, mayo, and fried onions

Two burger recipes in one week?! This one’s for the carnivores out there.

Ok so I originally intended the onions to be properly caramelized, but in my impatience I sliced them way too thin and cooked them way too hot, so we ended up with slightly caramelized but mostly fried onions. And you know what? There’s nothing wrong with that. They tasted delicious. To truly caramelize onions is a labor of love and can take a while. These onions took me about 20ish minutes. Feel free to actually caramelize your onions if you want 😉

The flavor combination in these burgers is fantastic. The onions and the bacon and the creamy horseradish and the buttery toasted buns *drool*. I made these burgers at the same time as my bourbon burgers, so I sadly wasn’t able to finish both, but oh my… the few bites I had of this burger were wonderful. You won’t miss the healthy stuff. Lettuce and tomatoes are tasty but not needed here. And the cheese? Feel free to add some, but I certainly wasn’t missing it 🙂

Just a note on the beef – I used regular (not lean) ground beef because the fat content makes for a juicier burger. Your standard grocery store ground beef should be cooked to 165F internal temperature for safety reasons. If you prefer a less well-done burger, I suggest using ground chuck for this recipe.

Think you’ll make these burgers?

close-up of a beef burger with bacon, horseradish mayo, and fried onions

Hope you’ll love these bacon horseradish burgers!

Beef burgers with bacon, horseradish mayo & fried onions are seriously delicious and easy to make.
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Beef Burgers with Bacon, Horseradish Mayo & Fried Onions

Beefy burgers with fried onions, horseradish mayo, and bacon.
Prep: 15 minutes
Cook: 45 minutes
Total: 1 hour
Servings: 4 burgers


Fried onions:

  • 1 large onion
  • 1 tablespoon olive oilSauce
  • 1/4 cup mayo
  • 2 teaspoons prepared horseradish
  • Salt & pepper to taste


  • 1 pound ground beef
  • 2 cloves garlic minced
  • 1/3 cup Italian breadcrumbs
  • 1 egg
  • Salt & pepper to taste


  • 4-6 slices bacon
  • 4 burger buns
  • Butter (if toasting buns)


  • Slice the onion into thin rings. Add to a skillet on medium heat with the olive oil and cook for about 20-25 minutes or until they're nicely browned. Stir them every few minutes so they don't burn.
  • Meanwhile, prepare the burger sauce by mixing the mayo, horseradish, and salt & pepper (I just used a spoon and a small bowl). Place in fridge until needed.
  • While the onions are cooking, you can fry the bacon in a separate pan until it's crispy (10-15 minutes).
  • Pre-heat grill to high heat.
  • Prepare the burgers. Using your hands, combine the burger ingredients, taking care not to over-handle them. I am quite generous with the salt and pepper. Form into four patties and make a divot in the middle of the burgers so they cook evenly.
  • Turn the grill down to medium-high heat. Place the burgers on the grill and cook for about six minutes (depends on thickness of burgers and the grill/BBQ you're using), then flip and cook for another six minutes or until they're cooked through.
  • My preferred method for toasting the insides of hamburger buns is to pre-heat a skillet on medium-high heat (on the stove) and then add the cut and buttered bun halves to the pan until they're toasted (takes a few minutes). You could always use the bacon fat skillet for some extra bacony deliciousness and fewer dishes. You could also toast them on your grill.
  • Assemble burgers by adding the sauce, burger patties, bacon, onions, and any other preferred toppings. Enjoy!


  • If you're using standard ground beef, I strongly suggest cooking the burgers until they're well-done and reach 165F inside (for safety reasons). If you're using something like ground chuck, they do not have to be cooked as well.
  • I used a gas BBQ to make this recipe. Keep in mind that these directions are only a guideline as every BBQ or grill is different, so adjust cooking time accordingly.

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Hi! Iā€™m Natasha.

Salt & Lavender is a recipe blog with a focus on delicious comfort food using everyday ingredients. Beat the weekday grind with hundreds of easy-to-follow and hassle-free recipes!

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  1. I was looking for a good beef burger with horseradish recipe. Thanks for sharing. For my onions, I add some Amish butter for some added extra flavor.

  2. I couldn’t agree more, nothing wrong with fried onions (in fact they find onions tastier fried than caramelized)! Love all the flavors here, horseradish makes everything better and bacon, onions, buttery buns and beeeef ā€“ YUM! Love the photography too!