Custard French Toast Cheese

Featured in: Weekend Family Meals

This dish combines custard-soaked slices of brioche or challah with layers of Gruyère or sharp cheddar cheese. Each sandwich is dipped in a rich egg and cream custard mixture, then pan-seared in butter and oil until golden brown and the cheese melts perfectly inside. The result is a decadent fusion of creamy, savory flavors and a crispy, golden exterior that makes for a satisfying brunch or main dish.

Adding optional ingredients like Dijon mustard or a sweet layer of fig jam or caramelized onions introduces delightful variations. Serve warm, sliced, alongside a fresh salad or tomato soup for a complete and elegant meal.

Updated on Wed, 24 Dec 2025 15:57:00 GMT
Golden-brown Custard French Toast Grilled Cheese oozes melted cheese, a sweet and savory brunch delight. Save
Golden-brown Custard French Toast Grilled Cheese oozes melted cheese, a sweet and savory brunch delight. | tastlis.com

There's something about the moment when golden bread hits a hot pan that makes everything feel possible—that sizzle is pure kitchen magic. The first time I combined French toast with a grilled cheese sandwich, I wasn't even sure it would work, but the crispy exterior giving way to creamy custard and melted cheese convinced me instantly. It's the kind of dish that tastes indulgent but comes together faster than you'd expect, turning an ordinary breakfast or lunch into something genuinely special.

I made this for my roommate on a quiet Sunday morning, and watching their face when they bit through the crispy exterior into that molten cheese center made me feel like a genius. They asked for the recipe before they'd even finished eating, which never happens. It became our go-to when we wanted to impress without fussing, which is basically always.

Ingredients

  • Eggs (3 large): The custard foundation—they bind everything together while adding richness that makes this more than just bread and cheese.
  • Whole milk and heavy cream (3/4 cup and 1/4 cup): This ratio matters; the cream adds luxurious depth without making the mixture too heavy.
  • Granulated sugar (1 tbsp): Just enough sweetness to play off the cheese—subtle but necessary.
  • Kosher salt and black pepper (1/2 tsp each): Season boldly; this isn't delicate food.
  • Dijon mustard (1/2 tsp, optional): A flavor secret that adds complexity without announcing itself.
  • Brioche or challah bread (8 slices, 1/2-inch thick): The structure that holds everything—dense enough not to fall apart, tender enough to soak up custard beautifully.
  • Gruyère or sharp cheddar cheese (8 slices): Gruyère melts like a dream and adds nutty sophistication; sharp cheddar brings personality.
  • Unsalted butter and neutral oil (2 tbsp butter, 1 tbsp oil): Butter for flavor, oil for heat stability—together they create that perfect golden crust.

Instructions

Make the custard bath:
Whisk eggs, milk, cream, sugar, salt, pepper, and mustard in a shallow bowl until smooth and unified. This is your golden ticket—don't skip the whisking or you'll end up with streaks of unbeaten egg white.
Assemble the sandwiches:
Lay out four bread slices and crown each with two cheese slices, then cap with the remaining bread. Simple, but the double cheese is what makes this sing.
Heat your pan:
Warm a large nonstick skillet or griddle over medium heat, then add butter and oil, swirling until the butter froths slightly. This temperature dance is crucial—too hot and the bread burns before the cheese melts, too cool and you get soggy bread.
Dip with intention:
Take each sandwich and dunk it quickly into the custard, coating both sides but not lingering so long that it becomes mushy. Speed matters here.
Pan-sear to golden:
Place sandwiches in the hot pan and cook 3–4 minutes per side, pressing gently with your spatula to encourage cheese melting and crust formation. You're looking for deep golden brown, not pale yellow—that color means flavor.
Rest and slice:
Transfer to a cutting board and let sit two minutes so the cheese sets slightly. Then slice diagonally because it just looks better, and serve while still warm enough to have that cheese pull.
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The moment I served this to people who hadn't expected anything fancy, who just thought they were getting breakfast, and watched them pause mid-chew to really taste what they were eating—that's when I realized this dish does something special. It's not complicated, but it feels like you tried.

Why This Dish Works

There's a reason French toast and grilled cheese have both stood the test of time: they're textural opposites that somehow live in harmony. The custardy richness meets crispy exterior meets creamy cheese center, and it's this layering of sensations that makes your brain actually pay attention to what you're eating. I've learned that the best comfort food isn't about being heavy or light—it's about creating contrast.

Making It Your Own

Once you nail the basic technique, the variations become obvious and fun. I've done fig jam tucked between the cheese and bread, which adds this jammy sweetness that somehow makes the savory parts taste more savory. Caramelized onions work beautifully too if you're in a purely savory mood, and experimenting with different cheeses teaches you a lot about flavor—Swiss feels lighter, fontina gets almost nutty, fresh mozzarella is a mild surprise.

Serving and Pairing

The beauty of this dish is that it's hungry for company in whatever form appeals to you. A simple green salad cuts through the richness perfectly; something acidic and bright is essential. I've had it alongside tomato soup, which turns it into pure nostalgia, and I've served it with just a poached egg on top because why not double down when you're already this invested.

  • Fresh greens with vinaigrette balance the richness without fuss.
  • A warm soup on the side transforms this into a complete, elegant meal.
  • Serve immediately while the cheese is still at peak meltiness.
This photo shows the decadent Custard French Toast Grilled Cheese cut, with bubbling, cheesy goodness visible. Save
This photo shows the decadent Custard French Toast Grilled Cheese cut, with bubbling, cheesy goodness visible. | tastlis.com

This is the dish that taught me that you don't need complicated techniques to feel proud of what you've made. Feed it to someone you like, watch their expression change, and you'll understand why I keep making it.

Recipe FAQs

What type of bread works best?

Brioche or challah bread about half an inch thick holds the custard well and crisps beautifully.

Which cheeses are recommended?

Gruyère and sharp cheddar provide great melting qualities and flavor, but Swiss, mozzarella, or fontina are good alternatives.

How do I prevent sogginess?

Dip the sandwiches carefully to coat without soaking through, then cook on medium heat to develop a golden crust and melted interior.

Can I prepare ahead?

Yes, assemble and cover the sandwiches, refrigerate, then dip and cook just before serving.

Are there sweet variations?

Adding a thin layer of fig jam or caramelized onions with the cheese offers a tasty sweet-and-savory twist.

Custard French Toast Cheese

Creamy custard-soaked bread stuffed with melted cheese, seared until crisp and golden, perfect for brunch.

Prep Time
15 min
Time to Cook
15 min
Overall Time
30 min
Author Lena Foster


Skill Level Easy

Cuisine American, French-Inspired

Makes 4 Portions

Dietary details Vegetarian

What You'll Need

Custard Mixture

01 3 large eggs
02 0.75 cup whole milk
03 0.25 cup heavy cream
04 1 tablespoon granulated sugar
05 0.5 teaspoon kosher salt
06 0.5 teaspoon ground black pepper
07 0.5 teaspoon Dijon mustard (optional)

Bread

01 8 slices brioche or challah bread, about 0.5 inch thick

Cheese Filling

01 8 slices Gruyère or sharp cheddar cheese, or a combination

For Cooking

01 2 tablespoons unsalted butter
02 1 tablespoon neutral oil (such as canola)

Directions

Instruction 01

Prepare Custard Mixture: Whisk together eggs, whole milk, heavy cream, granulated sugar, kosher salt, black pepper, and Dijon mustard until fully blended in a shallow bowl.

Instruction 02

Assemble Sandwiches: Lay 4 slices of bread on a work surface, top each with 2 cheese slices, and cover with the remaining bread slices to form sandwiches.

Instruction 03

Heat Cooking Surface: Warm a large nonstick skillet or griddle over medium heat and add 1 tablespoon butter and 0.5 tablespoon oil, swirling to evenly coat.

Instruction 04

Dip Sandwiches in Custard: Immerse each sandwich in the custard mixture, coating both sides thoroughly but avoiding oversaturation.

Instruction 05

Cook Sandwiches: Place custard-soaked sandwiches onto the skillet and cook 3 to 4 minutes per side, pressing gently, until golden brown and cheese is melted. Cook in batches if necessary, adding more butter and oil as needed.

Instruction 06

Rest and Serve: Transfer cooked sandwiches to a cutting board, allow to rest for 2 minutes, then slice and serve warm.

Tools Needed

  • Shallow bowl
  • Whisk
  • Large nonstick skillet or griddle
  • Spatula
  • Knife and cutting board

Allergy Notes

Review each component for possible allergens. If you aren't sure, ask a health pro.
  • Contains eggs, dairy, and wheat (gluten)
  • May contain mustard if Dijon is used

Nutrition Info (per portion)

This nutrition data is just for your information—always check with a healthcare provider if needed.
  • Energy: 480
  • Fats: 28 g
  • Carbohydrates: 38 g
  • Proteins: 19 g