Smoked French Onion Soup - SMOKEBROBBQ

Smoked French Onion Soup - SMOKEBROBBQ

On a cool fall day treat yourself to a savory soup with all that smoky grilled flavor we love. As you eat the soup every bite gets tastier as all the flavors meld together!

You Will Need

  • 5 medium Yellow onions
  • Olive oil
  • 1 whole Garlic Bulb
  • 4 cups Beef Broth
  • 3 Bay Leaves
  • 1 French baguette
  • 5 Tbsp Sherry Cooking Wine (or red cooking wine)
  • 2 Cups Shredded Mozzarella Cheese
  • 1 Green Onion
  • Kosmo's Q Texas Beef Dry Rub
  • Kosmo's Q Garlic Parm Wing Dust

The Prep

If you’re having a relaxing fall day this recipe is perfect for hanging out by the grill. Set your smoker/grill to 160ºF (71ºC), and start your prep!

Take your onions and slice them in ½ inch strips. Put them in a cast iron pan, give a drizzle of olive oil and lightly season with Kosmo's Q Texas Beef. Smoke your onions for an hour before turning up your grill to 325ºF (163ºC). You want them to be slightly caramelized and translucent when you take them off the pit.

While your onions are smoking, cut a ¼ inch off the top of your garlic bulb (keeping the bulb intact). Put a generous coating of olive oil on top, season with Kosmo's Q Texas Beef and wrap in aluminum foil.

You’ll be able to put your garlic on the grill/smoke with your onions at 325ºF (163ºC) for 1 hour. For the last 10 minutes, take the garlic out of the foil and put it directly on the grill.

Once they are done, take 3-4 of the garlic cloves and compress with a chef’s knife to make a paste (with grilled garlic this is quite easy). Cut 6-8 slices of your baguette to ½ inch thickness and set aside.

The Cook

Set your grill to 350ºF (177ºC).

Now that your onions and garlic are full of that smoky grilled flavour, it’s time to build the soup. Take your onions, garlic paste, beef broth, sherry cooking wine, and bay leaves to a light boil for 15-20 minutes on your stovetop.

Always taste before adding seasoning, if you need salt to taste add some Texas Beef rub. Remember the baguette and cheese are going to give an extra kick of flavour as well.

While your soup is at a light boil, take your sliced French baguette and toast them both sides on your grill. Once toasted, cube the bread into ½ inch sections (croutons). Toss your croutons in a mixing bowl and cover with Garlic Parm Wing Dust.

The Payoff

At this point you’ve put a lot of time into building the flavors of this soup, it’s time to assemble and bring it to the finish line!

Pour your soup into oven safe bowls. Cover the top of your soup with 1 layer of your toasted croutons. Lastly take some shredded mozzarella cheese and cover the croutons (if you’re a cheese lover you can substitute the Mozza with a variety of tasty cheeses).

Put your soup bowls into your grill/smoker at 350ºF for approximately 15 minutes until your cheese is melted and is developing a golden crust. Once your soup is finished you can lightly garnish with another dusting of the Garlic Parm and chopped green onions (you can always throw a little Parmesan cheese on top as well).


We hope you enjoyed this recipe by SMOKEBRO BBQ! Make sure to tell us what you liked and what you'd do differently, either in the comments below or on our social media.

Catch you on the next recipe!


Submit your own recipe. Embrace greatness.

Have you worked with Kosmos for a while, and come up with something even better? Many of our recipes are submitted by our wonderful customers, who come up with all sorts of ideas that we could never think of.

Go here to submit your own recipe. If accepted, you'll get 10% off the whole store.

Also in Recipes

Smoked Chicago Italian Beef Sandwich on a Pellet Grill?

Craving a classic Chicago Italian beef sandwich with a smoky twist? This comprehensive recipe will guide you to create a savory, melt-in-your-mouth delight right at home.

Chicken Fried Steak and Eggs!

Whether Father's Day is around the corner or you just want to surprise your dad with something he'll love, this hearty, down-home breakfast of chicken fried steak and eggs is the perfect choice.
Raspberry Ribs On The El Rey

Let's turn these baby back pork ribs into a raspberry feast! Follow this easy smoked ribs recipe for some seriously delicious results that will have everyone at the cookout talking!

Everyone wishes that they could have award-winning competition BBQ at their backyard barbecue parties. With Kosmo’s BBQ, that's exactly what you'll have, every time.