Simple French Style Garlic Soup

If you ask me, French garlic soup is one of those recipes that sounds fancy but is actually super simple to make.

This comforting soup brings together caramelized garlic, rich broth, and crusty bread for a meal that feels like a warm hug. The garlic gets sweet and mellow as it cooks, creating a base that’s full of deep flavor.

It’s topped with toasted bread and melted cheese, then broiled until golden and bubbly. Fresh herbs and a crack of black pepper help the whole thing come together.

It’s a cozy dish that’s perfect for chilly evenings, and you probably have most of the ingredients in your kitchen already.

What Kind of Garlic Should I Use?

For this French garlic soup, you’ll want to use a large, fresh head of garlic with plump, firm cloves. Regular white garlic from the grocery store works perfectly fine, though you can also use purple-striped varieties if you find them at the farmer’s market. Make sure your garlic head feels heavy for its size and doesn’t have any soft spots or green shoots sprouting from the top. When you break apart the head, the cloves should feel firm and the papery skin should come off easily. Since this recipe uses a whole head of garlic, fresher garlic will give you the best flavor and won’t have that bitter bite that older garlic sometimes develops.

Options for Substitutions

This simple French soup is pretty forgiving when it comes to swaps:

• Chicken stock: Vegetable stock works great for a vegetarian version, or you can use beef stock if that’s what you have on hand. Just avoid anything too strongly flavored that might compete with the garlic.
• Fresh sage: If you don’t have fresh sage, try fresh thyme or rosemary instead. You can also use dried sage, but use about 1 teaspoon instead of the fresh bunch.
• Garlic: This is really the star of the show, so I wouldn’t recommend substituting it. However, if your garlic head is small, feel free to use two heads for that proper garlicky punch.
• Olive oil: Any neutral oil like vegetable or canola works fine, but olive oil does add a nice flavor that pairs well with the garlic.
• Dijon mustard: Regular yellow mustard can work in a pinch, though it won’t give quite the same depth. Whole grain mustard is another good option if you have it.
• Egg: The egg creates a creamy texture when whisked in, but if you’re avoiding eggs, you can skip it entirely – the soup will just be a bit thinner but still tasty.

Watch Out for These Mistakes While Cooking

The biggest mistake when making French garlic soup is rushing the garlic cooking process – if you cook the garlic too quickly or at too high heat, it will turn bitter and ruin the entire soup’s flavor. Keep your heat at medium-low and let the garlic slowly caramelize until it’s golden and fragrant, which usually takes about 15-20 minutes. When making the aioli-style egg mixture, make sure your egg yolk is at room temperature and add the oil very slowly while whisking constantly, or it will break and become greasy instead of creamy. The key to perfect texture is adding the hot stock gradually to the egg mixture while whisking, rather than dumping it all at once, which could scramble the egg and create an unpleasant chunky consistency.

What to Serve With French Style Garlic Soup?

This rich, garlicky soup is perfect with some crusty French bread or a warm baguette for dipping and soaking up all those amazing flavors. I love serving it alongside a simple mixed greens salad with a light vinaigrette to balance out the richness of the soup. Since the garlic is the star here, you could also pair it with some roasted vegetables like carrots or Brussels sprouts that won’t compete with the bold flavors. For a heartier meal, try adding some grilled chicken or a poached egg right on top of the soup for extra protein.

Storage Instructions

Refrigerate: This garlic soup keeps really well in the fridge for up to 4 days in an airtight container. The flavors actually get even better after sitting overnight, so it’s perfect for making ahead. Just give it a good stir before serving since it might separate a little.

Freeze: You can freeze this soup for up to 3 months, but keep in mind that the egg mixture might change texture slightly when thawed. I like to freeze it in individual portions so I can just grab what I need for a quick meal.

Warm Up: Gently reheat the soup on the stovetop over medium-low heat, stirring frequently to prevent the egg from scrambling. If it seems too thick after reheating, just add a splash of chicken stock to thin it out. Avoid boiling it since that can make the texture grainy.

Preparation Time	15-20 minutes
Cooking Time	30-40 minutes
Total Time	45-60 minutes
Level of Difficulty	Medium

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 1350-1550
• Protein: 25-35 g
• Fat: 140-150 g
• Carbohydrates: 15-20 g

Ingredients

For the soup:

• 64 oz chicken stock
• 1 small bundle fresh sage
• 1 large garlic head

For the mayonnaise:

• 1 large egg, yolk and white divided
• 1 tsp dijon mustard
• A pinch salt
• 2/3 cup olive oil or preferred vegetable oil

Step 1: Simmer the Chicken Stock with Sage

• 64 oz chicken stock
• 1 small bundle fresh sage

In a large Dutch oven or stock pot, pour in the chicken stock and add the fresh sage.

Bring the mixture to a simmer over medium heat, then reduce to a gentle simmer while you prepare the garlic for the soup.

Let the stock and sage infuse slowly, allowing the herbs to flavor the broth.

Step 2: Prepare and Blanch the Garlic

• 1 large garlic head

Separate and peel all cloves from the head of garlic, slicing each clove in half lengthwise.

Remove the embryonic shoot from the center of each clove as it can add bitterness, especially in recipes using a large amount of garlic.

Bring a small saucepan of water to a boil and add the prepared garlic cloves.

Boil the garlic for 3-4 minutes to soften it and mellow its flavor, then drain well.

Step 3: Mash and Simmer Garlic in Stock

• mashed garlic from Step 2
• chicken stock and sage from Step 1

Using the back of a fork, mash the drained, softened garlic cloves until smooth and finely pureed.

Add the mashed garlic to the simmering chicken stock and continue to simmer gently for 10 minutes, allowing the flavors to meld.

I like to take my time with this step to ensure the garlic is as creamy as possible for a silky soup.

Step 4: Make the Mayonnaise

• 1 large egg, yolk and white divided
• 1 tsp Dijon mustard
• a pinch salt
• 2/3 cup olive oil or preferred vegetable oil

In a small jar just wide enough to fit your immersion blender, combine the egg yolk, Dijon mustard, a pinch of salt, and olive oil (or your preferred vegetable oil).

Reserve the egg white for later in case you need to adjust the consistency.

Place the immersion blender at the bottom of the jar and blend, slowly lifting it to emulsify all ingredients into a thick, creamy mayonnaise.

If the mixture remains thin, blend in the reserved egg white until the mayonnaise thickens.

Step 5: Strain Soup and Incorporate Mayonnaise

• soup base from Step 3
• mayonnaise from Step 4

Optional: For a smoother texture, strain your soup to remove any remaining solids, then return it to the pot.

Temper the mayonnaise by ladling some hot soup into the mayonnaise and stirring until combined.

Then, immediately pour the tempered mayonnaise mixture back into the pot, whisking constantly to fully incorporate it into the hot soup.

Step 6: Finish and Serve the Soup

Return the pot to the stove and gently warm the soup, being careful not to let it boil, as this could cause curdling.

Serve hot, optionally topped with crusty croutons, a drizzle of olive oil, smoked paprika, and fresh parsley for garnish if you wish.

I always recommend that extra drizzle of olive oil on top right before serving—it adds richness and brings all the flavors together nicely.