Best Roasted Garlic Potato Soup

Finding a comforting soup recipe that’s both creamy and packed with flavor can be tough, especially when you’re trying to keep things simple on a busy weeknight. After all, most cream-based soups require a long list of ingredients, careful stirring to avoid burning, and way more time than you have to spare after work.

Luckily, this roasted garlic potato soup checks all the boxes: it’s rich and satisfying without being heavy, uses pantry staples you probably already have, and comes together with minimal effort while the oven does most of the work for you.

What Kind of Potatoes Should I Use?

For this roasted garlic potato soup, you’ll want to reach for starchy potatoes like Russets or Yukon Golds. Russets break down beautifully when cooked, which makes them perfect for creating that smooth, creamy soup texture you’re after. Yukon Golds are another great option since they have a naturally buttery flavor that pairs really well with the roasted garlic. If you only have waxy potatoes like red potatoes on hand, they’ll work in a pinch, but your soup might end up a bit chunkier rather than silky smooth. Whatever you choose, just make sure to peel them before cooking so you get that velvety consistency throughout.

Options for Substitutions

This soup is pretty forgiving when it comes to swaps, so here are some options if you need them:

• Potatoes: Any potato variety works here – russets, Yukon golds, or red potatoes all make a creamy soup. Russets will give you the thickest texture, while Yukon golds add a buttery flavor.
• Cream: You can use half-and-half, whole milk, or even coconut milk for a dairy-free version. Keep in mind that milk will make a lighter soup, so you might want to add a bit more to reach your preferred consistency.
• Nutritional yeast: If you don’t have nutritional yeast, you can skip it or add a tablespoon of miso paste for that savory, umami flavor. Parmesan cheese also works if you’re not keeping it vegan.
• Vegetable broth: Chicken broth works just as well if that’s what you have on hand. You can also use a bouillon cube dissolved in water.
• Roasted garlic: Don’t skip the roasted garlic – it’s really what makes this soup special. The roasting process mellows out the garlic and gives it a sweet, caramelized flavor that raw garlic just can’t match.
• Bread: Any crusty bread works for the topping – sourdough, French bread, or even day-old baguette are all great choices.

Watch Out for These Mistakes While Cooking

The biggest mistake when roasting garlic is letting it go too dark, which creates a bitter taste instead of the sweet, mellow flavor you want – check it around the 15-minute mark and remove it once the cloves are golden and soft.

Overcooking your potatoes can make them waterlogged and dilute the soup’s flavor, so drain them as soon as a fork slides through easily and don’t let them sit in the water.

When blending hot soup, always start on low speed and leave the lid slightly vented to let steam escape, or you might end up with soup all over your kitchen ceiling.

For the creamiest texture, blend the soup for at least a full minute until completely smooth, and if it’s too thick, add broth a quarter cup at a time rather than dumping it all in at once.

What to Serve With Roasted Garlic Potato Soup?

This soup is really filling on its own, but I love serving it with some crusty bread on the side for dipping – sourdough or a good baguette works perfectly. A simple side salad with mixed greens, cherry tomatoes, and a light vinaigrette helps balance out the richness of the soup. If you want to make it more of a complete meal, add some roasted vegetables like broccoli or Brussels sprouts, or even a simple sandwich cut in half. The soup also pairs nicely with some crispy bacon bits or chives sprinkled on top if you want to add a little extra flavor and crunch.

Storage Instructions

Store: This soup keeps really well in the fridge for up to 5 days in an airtight container. The flavors actually get even better after a day or two as the roasted garlic mellows out and blends with the potatoes.

Freeze: You can freeze this soup for up to 3 months in freezer-safe containers or bags. Just leave a little room at the top since it’ll expand when frozen. The texture might be slightly different after thawing, but it still tastes great.

Reheat: Warm it up gently on the stovetop over medium-low heat, stirring occasionally. If it seems too thick after storing, just add a splash of vegetable broth or water to get it back to your preferred consistency. You can also microwave individual portions, but stir it halfway through for even heating.

Estimated Nutrition

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

• Calories: 1100-1300
• Protein: 20-28 g
• Fat: 45-55 g
• Carbohydrates: 150-170 g

Ingredients

For the roasted garlic:

• 16 garlic cloves
• 2 tablespoons olive oil (I prefer Bertolli Extra Virgin for roasting)
• salt

For the soup:

• 1.2 lbs potatoes (cut into 1-inch chunks)
• 1.5 cups vegetable broth (I always use Better Than Bouillon base)
• 1/3 cup cream (room temperature, helps prevent curdling)
• 3.5 tbsp nutritional yeast (gives the soup a nutty, cheesy flavor)
• 1.5 tsp onion powder
• 1/2 tsp dried thyme
• black pepper

For the croutons:

• 4 slices bread (cut into 1/2-inch cubes)
• olive oil
• black pepper

Step 1: Roast the Garlic

• 16 garlic cloves
• 2 tablespoons olive oil
• salt

Preheat your oven to 200°C (400°F).

Place garlic cloves on a small sheet of foil, drizzle with olive oil, and sprinkle generously with salt.

Wrap the foil around the garlic to create a packet, then roast for 15-20 minutes until the cloves are soft and caramelized.

The slow roasting transforms the sharp raw garlic into something sweet and mellow, which is the foundation of this soup’s flavor.

While the garlic roasts, you can prep the potatoes and bread for the next steps.

Step 2: Cook the Potatoes

• 1.2 lbs potatoes
• salt

Cut potatoes into 1-inch chunks and add them to a pot of salted boiling water.

Cook for 12-15 minutes until completely tender and easily pierced with a fork.

While the potatoes cook, prepare the bread croutons so everything comes together at roughly the same time.

Drain the potatoes thoroughly—excess water will dilute the soup’s flavor.

Step 3: Prepare the Bread Croutons

• 4 slices bread
• olive oil
• black pepper

Cut bread into 1/2-inch cubes and toss them with olive oil and black pepper.

Spread on a baking sheet and bake at 180°C (350°F) for 10 minutes until golden and crispy.

I like to bake the croutons at a slightly lower temperature than the garlic so they get crunchy rather than burned—the texture contrast with the silky soup is essential.

You can start these once your potatoes are cooking.

Step 4: Blend the Soup Base

• roasted garlic cloves from Step 1
• cooked potatoes from Step 2
• 1.5 cups vegetable broth
• 1/3 cup cream
• 3.5 tbsp nutritional yeast
• 1.5 tsp onion powder
• black pepper

Squeeze the roasted garlic cloves out of their skins into a blender.

Add the drained potatoes from Step 2, vegetable broth, room-temperature cream, nutritional yeast, onion powder, and black pepper.

Blend on high until completely smooth and creamy—this usually takes 2-3 minutes.

Room-temperature cream prevents the hot potatoes from causing the dairy to break and curdle, keeping your soup silky smooth.

Step 5: Finish and Adjust Consistency

• blended soup base from Step 4
• additional vegetable broth
• salt
• black pepper

Pour the blended soup into a pot and warm gently over medium heat, stirring occasionally, for 2-3 minutes.

Taste and adjust seasoning with salt and pepper as needed.

If the soup is too thick, add more broth a splash at a time until you reach your desired consistency—remember that nutritional yeast adds body, so start conservatively.

The soup should be velvety but still pourable.

Step 6: Serve with Croutons

• finished soup from Step 5
• croutons from Step 3

Ladle the warm soup into bowls and top with the crispy bread croutons from Step 3.

A drizzle of quality olive oil and a crack of fresh black pepper add a final flourish.

Serve immediately while the croutons are still crunchy—they’ll soften quickly if left sitting in the hot soup, so I recommend adding them just before serving for the best texture.

Best Roasted Garlic Potato Soup

Delicious Best Roasted Garlic Potato Soup recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 25 minutes mins

Total Time 40 minutes mins

Servings 4 servings

Calories 1200 kcal

Ingredients

  

For the roasted garlic

• 16 garlic cloves
• 2 tablespoons olive oil (I prefer Bertolli Extra Virgin for roasting)
• salt

For the soup

• 1.2 lbs potatoes (cut into 1-inch chunks)
• 1.5 cups vegetable broth (I always use Better Than Bouillon base)
• 1/3 cup cream (room temperature, helps prevent curdling)
• 3.5 tbsp nutritional yeast (gives the soup a nutty, cheesy flavor)
• 1.5 tsp onion powder
• 1/2 tsp dried thyme
• black pepper

For the croutons

• 4 slices bread (cut into 1/2-inch cubes)
• olive oil
• black pepper

Instructions

 

• Preheat your oven to 200°C (400°F). Place garlic cloves on a small sheet of foil, drizzle with olive oil, and sprinkle generously with salt. Wrap the foil around the garlic to create a packet, then roast for 15-20 minutes until the cloves are soft and caramelized. The slow roasting transforms the sharp raw garlic into something sweet and mellow, which is the foundation of this soup's flavor. While the garlic roasts, you can prep the potatoes and bread for the next steps.
• Cut potatoes into 1-inch chunks and add them to a pot of salted boiling water. Cook for 12-15 minutes until completely tender and easily pierced with a fork. While the potatoes cook, prepare the bread croutons so everything comes together at roughly the same time. Drain the potatoes thoroughly—excess water will dilute the soup's flavor.
• Cut bread into 1/2-inch cubes and toss them with olive oil and black pepper. Spread on a baking sheet and bake at 180°C (350°F) for 10 minutes until golden and crispy. I like to bake the croutons at a slightly lower temperature than the garlic so they get crunchy rather than burned—the texture contrast with the silky soup is essential. You can start these once your potatoes are cooking.
• Squeeze the roasted garlic cloves out of their skins into a blender. Add the drained potatoes from Step 2, vegetable broth, room-temperature cream, nutritional yeast, onion powder, and black pepper. Blend on high until completely smooth and creamy—this usually takes 2-3 minutes. Room-temperature cream prevents the hot potatoes from causing the dairy to break and curdle, keeping your soup silky smooth.
• Pour the blended soup into a pot and warm gently over medium heat, stirring occasionally, for 2-3 minutes. Taste and adjust seasoning with salt and pepper as needed. If the soup is too thick, add more broth a splash at a time until you reach your desired consistency—remember that nutritional yeast adds body, so start conservatively. The soup should be velvety but still pourable.
• Ladle the warm soup into bowls and top with the crispy bread croutons from Step 3. A drizzle of quality olive oil and a crack of fresh black pepper add a final flourish. Serve immediately while the croutons are still crunchy—they'll soften quickly if left sitting in the hot soup, so I recommend adding them just before serving for the best texture.