How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Grilled London Broil With Caramelized Onions?

You need 16 ingredients. The key ingredients include: 4 lbs london broil beef, marinade, 1/2 cup ketchup, 1/3 cup vinegar, and more.

Is Grilled London Broil With Caramelized Onions suitable as meat & poultry?

Yes, Grilled London Broil With Caramelized Onions falls under the Meat & Poultry category and is a great choice for this type of meal.

How do I store leftover Grilled London Broil With Caramelized Onions?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Grilled London Broil With Caramelized Onions Recipe

Name: Grilled London Broil With Caramelized Onions
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 4 lbs london broil beef; marinade; 1/2 cup ketchup; 1/3 cup vinegar; 1/4 cup oil; 3 tablespoons mustard; 3 tablespoons soy sauce; 3 tablespoons Worcestershire sauce; 1 tablespoon grated horseradish; 2 tablespoons honey; 1 teaspoon grated ginger; 3 garlic cloves, minced; 1 teaspoon black pepper; 1 teaspoon onion powder; 1 tablespoon dried parsley flakes; caramelized onion (Caramelized Onions) (optional)

Try this homemade Grilled London Broil With Caramelized Onions recipe the whole family will love. Made with beef, marinade, ketchup and vinegar. Easy st…

This Grilled London Broil With Caramelized Onions relies on simple, everyday ingredients such as london broil beef, marinade, ketchup and vinegar. It comes together quickly and makes 4 servings, at about 1460 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Meat & Poultry

1460

kcal

Calories

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Swap the honey for maple syrup or agave for a slightly different but equally rich sweetness.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Grilled London Broil With Caramelized Onions

Tips for the best results

Variations & substitutions

My Personal Notes

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