Finding a way to jazz up boring salads and soups can feel like an uphill battle. After all, plain croutons from the store are fine, but they don’t exactly make your taste buds dance with excitement, and making homemade ones from scratch can seem like way too much work for a weeknight dinner.
Luckily, these grilled cheese croutons solve both problems: they’re crispy and cheesy like your favorite comfort food, easy to whip up in just a few minutes, and perfect for turning any ordinary bowl of soup or salad into something your family will actually get excited about.
Why You’ll Love These Grilled Cheese Croutons
- Super quick and easy – Ready in just 10-20 minutes with only three simple ingredients you probably already have in your kitchen.
- Perfect way to use day-old bread – Instead of tossing that slightly stale bread, you can turn it into something amazing that adds crunch and flavor to your soups and salads.
- Cheesy, crispy goodness – These little bites give you all the comfort of grilled cheese in a fun, bite-sized form that’s perfect for topping your favorite soup or adding to a Caesar salad.
- Customizable with any cheese – Use whatever cheese you have on hand – cheddar, mozzarella, or even a fancy blend – to make these croutons your own.
What Kind of Cheese Should I Use?
For grilled cheese croutons, you’ll want to stick with cheeses that melt well and have good flavor. Classic choices like cheddar, Swiss, or Gruyere work great because they melt smoothly and give you that perfect gooey texture. If you’re feeling adventurous, try mixing two cheeses together – like sharp cheddar with a bit of mozzarella for extra meltiness. Make sure your cheese is at room temperature before you start, as this helps it melt more evenly and prevents the bread from burning while you wait for the cheese to get gooey. Avoid harder cheeses like Parmesan on their own, since they don’t melt as well and might leave you with dry croutons.
Options for Substitutions
These crispy little bites are super forgiving when it comes to swaps:
- Butter: If you’re out of butter, mayonnaise works great for grilling and gives an equally golden crust. You can also use olive oil or even cooking spray in a pinch.
- Day old bread: Any bread works here – white, whole wheat, sourdough, or even bagels. Fresh bread is fine too, just toast it lightly first so it holds up better when you cut it into cubes.
- Cheese: This is where you can get creative! Cheddar, Swiss, Gruyere, or even cream cheese all work well. Just make sure whatever cheese you use melts nicely. Pre-shredded cheese is convenient, but freshly grated melts more smoothly.
Watch Out for These Mistakes While Cooking
The biggest mistake when making grilled cheese croutons is using high heat, which will burn the outside before the cheese melts properly – stick to medium-low heat and be patient for that perfect golden crust.
Another common error is not letting your butter and cheese come to room temperature first, as cold ingredients won’t spread evenly and can lead to uneven cooking and poor melting.
To avoid soggy croutons, make sure your day-old bread is actually dry (not just old), and don’t overcrowd the pan when you’re cubing and toasting the finished grilled cheese.
Finally, cut your croutons while the sandwich is still warm but not piping hot – this prevents the cheese from oozing out while giving you clean, neat cubes that hold their shape.
What to Serve With Grilled Cheese Croutons?
These crispy grilled cheese croutons are perfect for topping your favorite soups – especially tomato soup, which is the classic pairing that never gets old. They also work great sprinkled over a simple green salad to add some cheesy crunch, or tossed into a Caesar salad for extra flavor. You can even serve them alongside a bowl of creamy potato soup or butternut squash soup for a cozy meal. For something different, try them as a fun appetizer with a warm marinara sauce for dipping.
Storage Instructions
Store: Keep your grilled cheese croutons in an airtight container at room temperature for up to 3 days. They’ll stay nice and crispy this way. I like to make a big batch on Sunday and use them throughout the week on soups and salads.
Freeze: These croutons freeze really well for up to 2 months in a freezer-safe bag or container. Just make sure they’re completely cooled before freezing. No need to thaw them before using – they crisp right back up!
Refresh: If your croutons lose their crunch after a day or two, just pop them in a 350°F oven for 3-5 minutes to crisp them back up. You can also toss them in a dry skillet over medium heat for a minute or two if you prefer.
| Preparation Time | 5-10 minutes |
| Cooking Time | 5-10 minutes |
| Total Time | 10-20 minutes |
| Level of Difficulty | Easy |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 500-600
- Protein: 18-22 g
- Fat: 28-34 g
- Carbohydrates: 38-45 g
Ingredients
- 2 slices day-old bread (firm texture prevents sogginess)
- 3 oz cheese (I use sharp cheddar, sliced thin)
- 1 tbsp unsalted butter (melted for even coating)
Step 1: Prepare the Bread and Cheese
- 3 oz cheese, sliced thin
- 2 slices day-old bread
- 1 tbsp unsalted butter
Slice your cheese thinly so it melts evenly throughout the sandwich—this ensures you get melted cheese in every crouton piece.
Use day-old bread as it has a firmer texture that won’t fall apart during cooking or cutting.
Melt the butter gently so it’s ready for even application.
Step 2: Butter and Assemble the Sandwich
- buttered bread slices from Step 1
- thin-sliced cheese from Step 1
Brush the melted butter evenly onto one side of each bread slice—this creates that golden, crispy exterior.
Layer the cheese slices on one buttered slice, then top with the second slice butter-side up.
I find thin cheese slices distribute better and melt more uniformly than thick chunks, giving you better coverage in each bite.
Step 3: Toast and Finish the Grilled Cheese
- assembled sandwich from Step 2
Heat a skillet over medium-high heat until a drop of water sizzles on contact.
Place the assembled sandwich butter-side down in the pan and cook for 2–4 minutes until the bread turns golden brown and crispy.
Flip carefully and cook the other side for another 2–4 minutes until equally golden.
The cheese should be melted and gooey by now, but resist opening the sandwich to check—keep it together so it holds its shape when you cut it.
Step 4: Cut and Serve
- cooked grilled cheese from Step 3
Transfer the grilled cheese to a cutting board and let it cool for just 1–2 minutes—this helps the cheese set slightly so the pieces hold together.
Using a sharp knife, cut the sandwich into 1-inch squares.
Serve immediately while the croutons are still warm and the cheese is creamy inside.
