French Onion Soup Mac & Cheese Comfort Bowl

Let Me Tell You About This Warming Mashup

So there I was, freezing mid-February, and all I could think about was the gooey, oniony delight of French onion soup… but I wanted pasta. Basically, my stomach (and, let’s be honest, my soul) hadn’t gotten the memo that you’re supposed to pick just one comfort food at a time. That’s when this French Onion Soup Mac & Cheese Comfort Bowl was born. And if I’m being totally honest, it started as a happy accident — I sautéed way too many onions for a quiche and then thought, why not see what happens if I mix ’em with cheesy macaroni? (Spoiler: heavenly things happened!)

To this day, my friends ask for it when they come over, and I’ve even made a version in my old college dorm kitchen with a single pot and a microwave. You do what you have to. Anyway, this isn’t your grandma’s mac & cheese (unless your grandma was part French bistro, part comfort-food genius?).

Why My Family & I Go Bonkers For This Dish

I whip this up when everyone’s feeling a bit meh or the weather’s gotten weird — like that “four seasons in a day” nonsense. My family goes crazy for this because it’s cheesy and savory, plus those sweet, caramelized onions have a way of making everyone think you worked way harder than you did (honest, it’s mostly slow stirring). I make extra onions sometimes — because I keep eating them right form the pan. And if you’re feeling lazy, don’t worry: it’s pretty hard to mess up, unless you forget about your onions and—happened once—set off the smoke alarm. To be fair, that was a rough week already.

What You’ll Need (Swaps and Shortcuts Welcome!)

  • 4 medium yellow onions, thinly sliced (white onions are fine, or—when I’m in a rush—I’ll even cheat with pre-sliced)
  • 2 tbsp unsalted butter (if you’re out, olive oil totally works or use half and half — tastes different but still nice)
  • 2 cloves garlic, minced (garlic powder in a pinch, but fresh is aces)
  • 1 tsp fresh thyme (I’ve used dried, just use a little less; also, don’t stress if you skip it)
  • 1/2 cup dry white wine (I’ve used apple juice or even just more broth, but wine gives that real bistro vibe)
  • 1 tbsp flour (any all-purpose — gluten-free works too; I’ve tried chickpea flour and it was, erm, not my favorite)
  • 3 cups beef or vegetable broth (the Better Than Bouillon jar is my jam, but cubes work fine, and veggie if you’re veggie)
  • 300g elbow macaroni (shells or orecchiette have both worked great — fusilli gets weird though)
  • 2 cups grated Gruyère (honestly, any Swiss cheese; if I’m on a budget, grocery-store Swiss goes in!)
  • 1 cup sharp cheddar (I’ve used Monterey Jack too; for extra punch, go smoked if you’re feeling fancy)
  • 1/2 cup grated Parmesan (the powdery stuff in the can works if it’s what you have — I won’t judge)
  • 1 tsp Worcestershire sauce (or soy sauce in a pinch — brings umami!)
  • Salt & black pepper, to taste
  • Handful of fresh parsley, chopped (literally for color; skip if not handy)
  • Optional: 1/2 baguette, sliced & toasted for topping (or any leftover bread, croutons, or even garlic chips)
French Onion Soup Mac & Cheese Comfort Bowl

Kitchen Chaos: The Way I Make It

  1. Slice and Sauté: Melt butter in a big heavy pot (a Dutch oven is ideal, but I once used a battered saucepan and nobody died). Toss in those onions, sprinkle salt, and cook them low and slow — at least 30 min. Stir around while you scroll your phone or have a cuppa. Don’t rush—patience is king here. Onions need to really turn golden and jammy, not just soft.
  2. Garlic & Thyme: Toss in the garlic and thyme. Give it maybe a minute; you want the zing but not burnt bits.
  3. Deglaze & Thicken: Splash in your wine (or whatever substitute), scrape up the goodness stuck to the bottom. When it’s mostly evaporated, stir in flour. It’ll look sticky and odd — this is where I usually sneak a taste (totally safe, trust me).
  4. Broth Bath: Slowly pour in the broth (doing it gradually avoids lumps, but if you get them, give it a whisk — it all melts out later). Bring to a gentle simmer. You’ll want this bubbling for about 8-10 min, then drop it to the lowest heat.
  5. Pasta Time: Meanwhile, cook your pasta as you usually do. Al dente is best; overcooked gets mushy in the bake. Drain but keep like half a mug of the pasta water. You might need it to adjust the sauce later.
  6. Cheesing It Up: Stir the drained pasta into your oniony goodness. Now, pile in the cheeses, a handful at a time, saving a bit for topping later. Add Worcestershire, stir, and taste. Need more salt? Pepper? Now’s your moment.
  7. Final Flourish: If it’s too thick, trickle in a little of that pasta water. Too soupy? Just simmer a minute longer. Pour into bowls (or a big ole casserole if you want to brown the top). Scatter with the extra cheese and, if you’re feeling super lush, slip it under the broiler until the edges bubble and brown.
  8. Toasty topping: Top each bowl with toasted baguette (or whatever’s lurking in your breadbox). Sometimes I rub the bread with garlic first — if I remember. Sprinkle parsley for some pretty. Dig in!

Notes from My Messy Kitchen

  • If you burn the onions, pitch ’em and start over. I’ve tried rescuing them — trust me, the flavor lingers (in a bad way).
  • Actually, I find it works better if you don’t get distracted binge-watching Bake Off. Learned the hard way.
  • This is rich, so you might only need a small bowl. Or not. Your call.
  • I’ve reheated this in the microwave; it sometimes splits a little, but a splash of milk brings it back around.
  • You can make the onion mixture ahead. Tastes even better if it hangs out in the fridge a day or two, if you can wait that long. I usually can’t.
French Onion Soup Mac & Cheese Comfort Bowl

Variations I’ve Attempted (With Mixed Results)

  • Mushroom version: sauté 250g sliced mushrooms with the onions. Earthy and fab, but the kids picked them out.
  • Vegetarian: stick with veg broth, lose the Worcestershire.
  • Tried adding shredded rotisserie chicken once — it tasted fine, but nobody asked for it again. (They like it pure!)
  • I once swapped cheddar for pepper jack. It was, um, eye-opening. Maybe not for everyone.

Tools I Use (Plus Some No-Fuss Hacks)

  • Good, heavy-bottomed pot (Dutch oven is fab, but a big saucepan or even a deep frying pan will do. I know someone who made it in a rice cooker, so anything goes!)
  • Pasta pot for boiling (But hey, wash and reuse your onion pot if you’re low on clean dishes. I always am.)
  • Cheese grater (Or buy pre-grated… but block cheese melts better. Your call.)
  • Broiler for bubbling cheese top (Not required — just pop under your oven grill if that’s what you call it. Or skip!)
French Onion Soup Mac & Cheese Comfort Bowl

How to Store Leftovers (If You Have Any)

Supposedly keeps in an airtight container in the fridge for up to 3 days, but honestly, in my house it never lasts more than a day! If you do have leftovers, the sauce thickens up, so just add a splash of milk or broth before reheating.

My Favorite Ways to Serve This (For Crowd-Pleasing Vibes)

I love ladling this into big, deep bowls with extra toasted bread on the side — my kids dip everything, so the bread vanishes first. Sometimes I serve it alongside a simple green salad (mostly for show). On chilly nights, we eat by the couch watching old movies, and it somehow tastes better. Funny how that works.

Hard-Earned Pro Tips (Some Learned The Wrong Way)

  • Don’t rush the onions! I once tried cranking up the heat — disaster. They went from raw to burnt with no sweet goodness in between.
  • Actually, dump in the cheese bit by bit, so it melts in smoothly. Once, I chucked it all in and got a weird rubbery blob.
  • If the sauce looks thin, let it rest off heat a few minutes; it thickens as it cools.

Your (Real) Questions, Answered

  • Can I make this gluten-free? Absolutely! Use your favorite GF pasta and a 1:1 flour blend — works a treat.
  • I’m not a wine person – is it necessary? Nope, just add more broth or even splash of apple cider. Flavor will shift a little, but no biggie.
  • What’s the best cheese for this? Gruyère is classic, but whatever melty cheese you have lurking is fine. I actually love a sharp cheddar for bite.
  • Can you freeze it? Eh, I wouldn’t — it can get kind of grainy. If you don’t mind a texture shift, go for it.
  • What goes with it? If you want inspiration, I often serve this with a basic greens salad or roasted broccoli. If you like wine, check out this mac and cheese wine pairing guide — handy stuff!
  • Any more topping ideas? My mate swears by crispy fried onions (like those canned ones you get for green bean casserole). They work, too!

For more cozy mash-up recipes, I totally recommend checking out Smitten Kitchen — Deb’s comfort food section is full of crazy-good ideas. Or just go wild with what’s in your fridge, because at the end of the day, the best comfort food is the one you actually make.

So there you have it — a French Onion Soup Mac & Cheese Comfort Bowl that’s equal parts nostalgic and a little bit new. Dump your rules (but not your onions) and dive in.

★★★★★ 4.80 from 120 ratings

French Onion Soup Mac & Cheese Comfort Bowl

yield: 4 servings
prep: 20 mins
cook: 40 mins
total: 50 mins
A hearty mash-up of classic French onion soup and creamy mac & cheese, this comfort bowl is packed with caramelized onions, gooey cheese, and tender pasta for an irresistible meal.
French Onion Soup Mac & Cheese Comfort Bowl

Ingredients

  • 2 cups elbow macaroni, uncooked
  • 3 large yellow onions, thinly sliced
  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • 2 cups shredded Gruyere cheese
  • 1 cup shredded mozzarella cheese
  • 2 cups milk
  • 1 tbsp all-purpose flour
  • 2 cups low-sodium beef broth
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1/2 cup breadcrumbs
  • 2 tbsp fresh parsley, chopped

Instructions

  1. 1
    Cook the elbow macaroni according to package instructions. Drain and set aside.
  2. 2
    In a large skillet over medium heat, melt butter and olive oil. Add sliced onions and cook, stirring frequently, until caramelized and deeply golden, about 20 minutes.
  3. 3
    Add flour to the onions and stir for 1 minute. Slowly pour in beef broth and simmer until slightly thickened, about 5 minutes.
  4. 4
    Reduce the heat to low and add milk, shredded Gruyere, and mozzarella cheese, stirring until melted and smooth. Season with salt and black pepper.
  5. 5
    Combine cooked macaroni with the cheesy onion sauce in a large baking dish. Top with breadcrumbs and bake at 375°F (190°C) for 15 minutes or until bubbly and lightly browned.
  6. 6
    Garnish with chopped parsley before serving and enjoy your French Onion Soup Mac & Cheese Comfort Bowl.
CLICK FOR NUTRITION INFO

Approximate Information for One Serving

Serving Size: 1 serving
Calories: 620 caloriescal
Protein: 29gg
Fat: 28gg
Saturated Fat: 0g
Trans Fat: 0g
Cholesterol: 0mg
Sodium: 0mg
Potassium: 0mg
Total Carbs: 62gg
Fiber: 0g
Sugar: 0g
Net Carbs: 0g
Vitamin A: 0
Vitamin C: 0mg
Calcium: 0mg
Iron: 0mg

Nutrition Disclaimers

Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.

Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.

To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.

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