Caramelized Onion Burger

A Caramelized Onion Burger is a savory, juicy beef patty topped with slow-cooked, sweet onions, often served on a toasted bun with classic condiments. Originating in American diners and backyard grills, it elevates the simple hamburger with the rich, umami depth of caramelized onions.

🍳 View the full Caramelized Onion Burger recipe →

🍽️ Nutrition at a glance

This burger is high in protein from the beef and fat from the cooking process and cheese (if added), with moderate carbs from the bun and onions. A typical serving provides around 500-700 calories, along with iron, B vitamins, and some fiber from the onions.

Nutrition breakdown

Calories	580 kcal
Protein	34 g
Carbs	38 g
Fat	32 g
Fiber	3 g
Sugar	9 g
Sodium	890 mg
Potassium	450 mg
Iron	5.2 mg
Calcium	180 mg
Vitamin B12	2.1 mcg
Niacin (B3)	7.8 mg
Zinc	6.5 mg
Phosphorus	310 mg
Selenium	28 mcg

Per 1 burger (approximately 220 g) · estimated, varies by recipe

💡 What's interesting

Caramelizing onions is a patient, transformative process that breaks down their natural sugars, creating a complex flavor that's both sweet and savory—a technique that turns a humble ingredient into the star of the dish.