Caramelized Onion Apple Cheddar

Featured in: Rustic Comfort Meals

This dish layers deeply caramelized onions, crisp apple slices, and sharp cheddar cheese between slices of buttery, golden-browned sourdough bread. The onions are slowly cooked until soft and sweet, balancing perfectly with the tartness of the apple and the rich melted cheese. Ideal for a quick yet gourmet meal, it offers a pleasing combination of textures and flavors with minimal preparation and cooking time.

Updated on Fri, 28 Nov 2025 14:07:00 GMT
Golden, melty Caramelized Onion, Apple & Cheddar Grilled Cheese sandwich, served warm and delicious. Save
Golden, melty Caramelized Onion, Apple & Cheddar Grilled Cheese sandwich, served warm and delicious. | birchplate.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 grilled cheese to my family on a chilly afternoon and it quickly became a favorite comfort food for us all

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.
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| birchplate.com

This grilled cheese recipe has brought many cozy family moments especially on chilly fall evenings when everyone gathers around the kitchen table

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

Crisp apple slices peek from bubbly, golden-brown Caramelized Onion, Apple & Cheddar Grilled Cheese sandwiches. Save
Crisp apple slices peek from bubbly, golden-brown Caramelized Onion, Apple & Cheddar Grilled Cheese sandwiches. | birchplate.com

Enjoy this elevated grilled cheese warm for the best blend of flavors and textures

Recipe Questions & Answers

How do I properly caramelize onions for this sandwich?

Cook thinly sliced onions slowly over medium-low heat with butter and a touch of olive oil, stirring frequently for 15–18 minutes until deeply golden and soft.

What type of apple works best in this sandwich?

Crisp, tart apples like Granny Smith or Honeycrisp provide a refreshing crunch that complements the savory elements well.

Can I substitute cheddar cheese with another type?

Yes, cheeses like Gruyère or fontina are excellent alternatives, offering a different flavor profile while still melting nicely.

What is the best bread choice for this dish?

Sourdough or country-style bread with a sturdy crumb holds up well to the melted cheese and juices from the apples and onions.

Any tips to enhance the flavor further?

Adding a thin layer of Dijon mustard or fresh baby arugula can introduce a subtle kick or peppery bite to the sandwich.

Caramelized Onion Apple Cheddar

A savory sandwich featuring sweet caramelized onions, crisp apple slices, and melted sharp cheddar cheese.

Prep Duration
15 minutes
Time to Cook
25 minutes
Overall Time
40 minutes
Created by Elena Hart


Skill Level Easy

Cuisine Type American

Servings produced 2 Serving Size

Diet Details Vegetarian-Friendly

What You'll Need

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 for spreading
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

Step-by-Step Guide

Step 01

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

Step 02

Assemble the Sandwiches: Arrange bread slices on a work surface. Spread softened butter on one side of each slice. On the unbuttered side of two slices, layer half of the cheddar cheese, followed by caramelized onions, apple slices, a pinch of black pepper, then the remaining cheddar. Top with the remaining bread slices, buttered side facing out.

Step 03

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

Step 04

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

Tools Needed

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

Allergy Details

Review all components to spot allergies and check with a doctor if you're unsure.
  • Contains dairy (butter, cheese) and wheat (bread). May contain gluten.

Nutrition Breakdown (each serving)

Nutritional info is for reference. Please consult your doctor for specifics.
  • Energy (Calories): 470
  • Fats: 26 g
  • Carbohydrates: 43 g
  • Proteins: 18 g