Caramelized Onion Apple Cheddar

Featured in: Vegetarian Picks

This dish combines deeply golden caramelized onions with crisp apple slices and sharp cheddar cheese. Layered between buttered sourdough, the sandwich is pan-cooked until bread is golden and cheese melts flawlessly. The balance of sweet, savory, and tangy flavors makes it a simple yet indulgent comfort food. Customizable with arugula, mustard, or alternative cheeses for added zest.

Updated on Fri, 28 Nov 2025 10:33:00 GMT
Golden, gooey Caramelized Onion, Apple & Cheddar Grilled Cheese, ready to be sliced and enjoyed. Pin
Golden, gooey Caramelized Onion, Apple & Cheddar Grilled Cheese, ready to be sliced and enjoyed. | potfuljoy.com

A gourmet twist on the classic grilled cheese, featuring sweet caramelized onions, crisp apple slices, and sharp cheddar, all melted between golden, buttery bread.

I first served this for a casual lunch and my family could not get enough of the savory and sweet flavors together.

Ingredients

  • For the Caramelized Onions: 1 large yellow onion, thinly sliced, 1 tablespoon unsalted butter, 1 teaspoon olive oil, 1/2 teaspoon salt, 1/2 teaspoon sugar (optional for extra sweetness)
  • For the Sandwich: 4 slices sourdough or country bread, 2 tablespoons unsalted butter softened for spreading, 1 medium crisp apple such as Granny Smith or Honeycrisp thinly sliced, 120 g 4 oz sharp cheddar cheese sliced or shredded, freshly ground black pepper to taste

Instructions

Prepare the caramelized onions:
In a skillet over medium-low heat, melt 1 tablespoon butter with olive oil. Add sliced onion and salt. Cook stirring often for 15 18 minutes until onions are deeply golden and soft. If desired add sugar halfway through for extra sweetness. Set aside.
Assemble the sandwiches:
Lay out the bread slices. Spread butter on one side of each slice. On the unbuttered side layer half the cheddar followed by a layer of caramelized onions apple slices a pinch of black pepper and the remaining cheddar. Top with the second slice of bread buttered side facing out.
Cook the grilled cheese:
Heat a nonstick skillet or griddle over medium heat. Place sandwiches in the skillet and cook for 3 4 minutes per side pressing gently until bread is golden brown and cheese is melted. Reduce heat if bread browns too quickly.
Remove from heat:
Let cool for 1 2 minutes then slice and serve warm.
Pin
| potfuljoy.com

This grilled cheese has become a staple for cozy family lunches filled with smiles and chatter.

Required Tools

Skillet or nonstick pan Spatula Knife Cutting board

Allergen Information

Contains Dairy butter cheese Wheat bread May contain Gluten bread Double-check bread and cheese labels for potential allergens

Nutritional Information

Calories 470 Total Fat 26 g Carbohydrates 43 g Protein 18 g per serving

Melted cheese oozes from a Caramelized Onion, Apple & Cheddar Grilled Cheese, sandwiching sweet onions and crisp apples. Pin
Melted cheese oozes from a Caramelized Onion, Apple & Cheddar Grilled Cheese, sandwiching sweet onions and crisp apples. | potfuljoy.com

This caramelized onion apple cheddar grilled cheese is an effortless upgrade to a beloved classic.

Recipe Q&A

How do I caramelize onions perfectly?

Cook sliced onions slowly over medium-low heat with butter and olive oil, stirring often until deeply golden and soft, about 15-18 minutes.

What apple varieties work best for this sandwich?

Crisp apples like Granny Smith or Honeycrisp provide a fresh, tart contrast that complements the sweetness of caramelized onions.

Can I substitute cheddar with other cheeses?

Gruyère or fontina are excellent alternatives, adding different flavor notes while melting well.

What type of bread is ideal for this preparation?

Sourdough or country bread with a sturdy crumb holds up well and crisps beautifully when grilled.

Any tips for achieving golden, crispy bread?

Spread softened butter on the bread's outer sides and cook over medium heat, pressing gently for even browning without burning.

Caramelized Onion Apple Cheddar

Sweet caramelized onions, crisp apple slices, and sharp cheddar melted in golden buttery bread.

Preparation time
15 min
Cooking time
25 min
Total time
40 min

Category Vegetarian Picks

Difficulty Easy

Origin American

Yield 2 Servings

Dietary specifications Vegetarian

Ingredients

Caramelized Onions

01 1 large yellow onion, thinly sliced
02 1 tablespoon unsalted butter
03 1 teaspoon olive oil
04 1/2 teaspoon salt
05 1/2 teaspoon sugar (optional)

Sandwich

01 4 slices sourdough or country bread
02 2 tablespoons unsalted butter, softened
03 1 medium crisp apple (e.g., Granny Smith or Honeycrisp), thinly sliced
04 4 ounces sharp cheddar cheese, sliced or shredded
05 Freshly ground black pepper, to taste

Instructions

Step 01

Caramelize the onions: Melt 1 tablespoon butter with olive oil in a skillet over medium-low heat. Add thinly sliced onion and salt, stirring frequently for 15 to 18 minutes until deeply golden and tender. Add sugar halfway through if extra sweetness is desired. Remove from heat and set aside.

Step 02

Assemble the sandwiches: Lay out bread slices and spread softened butter on one side of each. On the unbuttered sides, layer half the cheddar, caramelized onions, apple slices, a pinch of black pepper, and the remaining cheddar. Top with bread slices, buttered side out.

Step 03

Grill the sandwiches: Heat a nonstick skillet or griddle over medium heat. Place sandwiches in the skillet and cook 3 to 4 minutes per side, pressing gently, until the bread is golden brown and cheese has melted. Lower heat if bread browns too quickly.

Step 04

Serve: Remove sandwiches from heat, let rest for 1 to 2 minutes, then slice and serve warm.

Required equipment

  • Skillet or nonstick pan
  • Spatula
  • Knife
  • Cutting board

Allergen information

Review each ingredient to identify potential allergens and if uncertain, please consult a healthcare professional.
  • Contains dairy (butter, cheese) and wheat (bread); may contain gluten depending on ingredients.

Nutritional values (per serving)

These values are provided as a general guide only and shouldn't replace professional medical advice.
  • Calories: 470
  • Fat: 26 g
  • Carbs: 43 g
  • Protein: 18 g