Caramelized Onion and Steak Sandwiches

Caramelized Onion and Steak Sandwiches

Learn how to make the perfect caramelized onions to accompany your steak sandwich with the help of this tasty recipe.

  • Serves: 4
  • PREP TIME: 15 min
  • COOK TIME: 35 min


  • 2 Tbsp. vegetable oil
  • 2 medium onions, thinly sliced, about 4 cups
  • 1 cup Hellmann's® or Best Foods® Real Mayonnaise
  • 1/2 cup balsamic vinegar
  • 12 ounces flank steak or sirloin steak, grilled or broiled, then sliced
  • 1 loaf French bread, split and cut into 4 pieces


  1. Heat oil in large nonstick skillet over medium-low heat and cook onions, stirring occasionally, until golden brown, about 25 minutes. Stir in vinegar and cook an additional 10 minutes.
  2. Remove from heat and stir in Hellmann's® or Best Foods® Real Mayonnaise. Season, if desired, with salt and pepper to taste.
  3. Evenly top bread with sliced steak and onion mixture.
Nutritional Information

Nutritional Information

Nutritional Information
Serving Size 1 serving
Serving Size 1 serving
Amount per Serving
Amount per Serving
Nutrient Type Value
Calories 920
Calories from Fat 490
Total Fat 55 g
Saturated Fat 10 g
Trans Fat 0 g
Cholesterol 95 mg
Sodium 1070 mg
Total Carbs 69 g
Dietary Fiber 4 g
Sugars 8 g
Protein 37 g
Vitamin A 0 %
Vitamin C 6 %
Calcium 4 %
Iron 30 %