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Best-Ever Grilled Cheese Sandwich


I’m sharing with you how to make the most perfect grilled cheese sandwich you will have ever tasted, this isn’t your usual two slices of bread with a piece of cheese in the center, we’re taking it to the next level.

Image by Carina via

How To Make The Best Ever Grilled Cheese:

We’re going to start by making a cross between a cheese sauce and a cheese spread, which is going to be one part of this grilled cheese.

In a small saucepan, melt a 1/4 cup, 55 grams, or half a stick of butter. I give the recipe amounts in cups and grams, so no matter where you live in the world, this recipe should be easy enough to follow.

Next, measure out a 1/4 cup or 30g of flour and add it to the saucepan.

We’re making a roux, which is a mixture of butter and flour, which will thicken the cheese sauce to a spreadable consistency.

Cook it out for a few minutes, stirring continuously to remove the floury taste; we don’t want to brown it, so keep your heat to a medium-low. This may seem like a bit of work for a simple grilled cheese but trust me it is worth it. it is a great thing to make as a side dish for soup, add some other fillings for a more substantial sandwich, or of course, it is perfect all on its own.


The cheese sauce will keep in the fridge for a few days so you can easily make a little more than you will need, so it only takes a few minutes next time. Measure out a cup of milk and start to slowly add it to the roux, about a quarter of it at a time.

As soon as you pour some in the butter and flour mixture will dry right up, continue stirring until everything is evenly combined.

Keep your heat low as it is really easy to burn. Add the next lot of milk and continue to stir. Doing a small amount at a time is your best bet at getting a creamy sauce with no lumps.

With each lot of milk, you add the sauce will start to thin out, we’re after a quite thick consistency, so don’t worry if you think you need more milk.

Once all of the milk has been incorporated, turn off the heat and set the sauce to the side while we prep the cheese.

it is where you can pick and choose what kinds of cheeses you want to incorporate. I usually will go for whatever kind I have on hand, but I good balance is cheddar for flavor and mozzarella for the stringy cheesy texture.

You’ll need 3/4 of a cup of cheese for the sauce plus extra for the sandwich. I would recommend grating your cheese rather than using pre-grated if you can as it melts so much better. Pre grated cheese is usually coated in starch to stop it clumping together, but this causes to melt oddly.

We will be using a 1/4 cup of grated parmesan cheese and 1/2 a cup of grated cheddar and saving the mozzarella to slice up later.

The sauce should still be quite hot for the cheese to melt, but if it’s cooled down too much, heat it over low heat while you add your cheese. Make sure its low heat as scolding the sauce is a really quick way for it to break, meaning the fats, protein, and water separates, leading to a very curdled textured sauce that we don’t want.

Add your cheese in two stages, waiting for the first lot of cheese to completely melt before adding the second lot.

It should incorporate into a thick, creamy, and cheesy sauce. To the cheese sauce, you could also add other flavorings. I’m skipping giving you measurements or telling you what to add here as it depends on what cheeses you have picked.


You can season with salt and pepper, but I find it doesn’t need any with the parmesan. You could also add bacon pieces, spice it up with some jalapeños or add some mustard for flavor.

Once all these cheese has been incorporated, and your sauce is smooth, set it to the side while we prep the bread.You can use any type of bread you would, but something crusty is your best bet like sourdough rather than the standard white pre-sliced loaf. It’s just a way to make this sandwich a little more delicious.

Cut 2 slices from the middle of your loaf.

You don’t want them to be too thick, or else the heat won’t be able to get to the cheese but not too thin that you miss out on the crunch of the bread. About a few centimeters or half an inch is a great starting place.

Now comes something you might not have done before, but trust me on it. We’re going to use mayonnaise on the bread slices to crisp them up rather than butter. Butter works great, but mayonnaise works even better.

If you think about it, mayonnaise is made up of eggs and oil, both of which are usually used to make things brown better, and combined, they work so well.

Add a few teaspoons worth of mayonnaise or garlic mayonnaise as I’m using here for a little extra flavor to the bread.

Best-Ever Grilled Cheese Sandwich
Prep Time
5 mins
Cook Time
10 mins
Total Time
15 mins

Making the best-grilled cheese is a pretty simple task when you have great ingredients and a few simple tools. In just a few minutes, this classic comfort food can be hot and ready. couldn't be simpler or more delicious.

Course: Dinner, lunch, Sandwich
Cuisine: American
Keyword: Grilled Cheese
Servings: 1 Serving
  • ¼ Cup / 55g / ½ Stick Butter
  • ¼ Cup / 30g Flour
  • 1 Cup / 250ml Milk
  • ¼ Cup Parmesan Cheese
  • ½ Cup Cheddar Cheese
  • Mozzarella Cheese Slices
  • Crusty Bread
  • ¼ Cup Mayonnaise
  1. Melt the butter in a small saucepan over medium heat. Add the flour and stir for 2-3 minutes until it is combined and cooked.

  2. Add the milk to the pan in 4 steps, stirring constantly, until well blended. Turn off the heating and add the cheese in two steps. Make sure that the first batch has completely melted before you add the second batch.

  3. Cut bread into 2 cm wide slices. Add a few teaspoons of mayonnaise to each slice and place it in a saucepan for 2-3 minutes over medium heat.

  4. Once the French toast is ready, remove it from the pan and spread the mayonnaise on the other side.

  5. Turn the slices of bread so that the roast side is facing up. Put 2-3 tablespoons of cheese sauce on each slice of bread and spread evenly around the edges. Cover a slice of mozzarella and cover with another slice of bread.

  6. Put the sandwich in the saucepan over medium heat and cook on each side for about 4 to 5 minutes until the bread is grilled and the cheese has melted.

  7. Slice in half and enjoy.

Recipe Notes

The cheese sauce stays in the fridge for about three days.
Add bacon or jalapeño pieces to the cheese sauce to improve the taste.

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