I developed this recipe for those nights when comfort is needed fast, but quality can’t be compromised. Instant mashed potatoes form the base for a velvety smooth soup that’s ready in minutes.
The secret lies in treating the instant potatoes like a roux—blooming them in hot broth to eliminate any raw flavor while building a thick, creamy texture. A touch of cream and sharp cheddar elevate the dish beyond its humble origins.
What emerges is a bowl of soup with the richness of traditional potato soup, achieved through a no-fuss method. The texture is so smooth and satisfying, no one will guess the shortcut you took.
Perfect for chilly evenings or whenever you need a quick, heartwarming meal. The results speak for themselves.
Ingredients for Potato Soup Recipe Instant Mashed Potatoes
Pantry staples plus a few fresh additions make this soup magical in minutes.
| Ingredient | Amount | Notes |
|---|---|---|
| Instant Mashed Potato Flakes 🥔 | 2 cups | Plain, unflavored variety |
| Chicken Broth 🍲 | 4 cups | Or vegetable broth for vegetarian |
| Heavy Cream 🥛 | 1 cup | Full-fat for richness |
| Sharp Cheddar Cheese 🧀 | 1 ½ cups | Shredded from block |
| Unsalted Butter 🧈 | ¼ cup | For blooming potatoes |
| Yellow Onion 🧅 | 1 whole | Medium, finely diced |
| Garlic Cloves 🧄 | 3 cloves | Minced for depth |
| All-Purpose Flour 🌾 | 2 tbsp | For thickening soup |
| Salt 🧂 | 1 tsp | Adjust to taste |
| Black Pepper 🌶️ | ½ tsp | Freshly ground preferred |
| Dried Thyme 🍃 | ½ tsp | Or 1 tsp fresh |
| Bay Leaf 🌿 | 1 whole | Remove before serving |
The instant potatoes are key here—Idahoan brand works great, but any plain variety will do (skip the flavored ones). Use full-fat cream and block cheddar for that rich, velvety texture. Most grocery stores carry everything you need. I grab my cheddar from the deli counter and shred it myself—pre-shredded has anti-caking agents that can make the soup grainy (worth the extra minute).
Need a swap? Whole milk with a splash of half-and-half works if you’re out of cream. Vegetable broth instead of chicken keeps it vegetarian. No thyme? Dried rosemary at half the amount adds a nice piney note. For extra flavor, add a pinch of smoked paprika. The onion and garlic are non-negotiable though—they build the base flavor.
Leftovers keep 4-5 days in the fridge and reheat like a dream. Freezes for 3 months too. I always make a double batch—perfect for quick lunches. Just stir in a splash of milk when reheating to restore that creamy consistency.
Why You’ll Love This Recipe
- 5-Minute Base: I dump the instant mashed potato flakes straight into hot chicken broth—no peeling, no chopping.
- Melted Cheese Magic: The sharp cheddar melts into the heavy cream for a tangy, velvety richness you can’t resist.
- Weeknight Hero: Between us, this is my Tuesday night lifesaver when everyone’s hungry and I’m out of time.
- Budget Stretcher: One bag of flakes feeds four with leftovers, and the butter and cheese make it taste indulgent.
Step-by-Step Instructions for Potato Soup with Instant Mashed Potatoes
This method turns humble ingredients into rich, creamy soup faster than you think.
Step 1: Sauté Aromatics for Flavor Base
Melt the 0.25 cup Unsalted Butter in a large pot over medium heat. Add the 1 whole Yellow Onion (finely diced) and cook for 5 minutes until soft and translucent. The onion should turn from opaque to glassy—this builds your flavor foundation.
Stir in the 3 cloves Garlic Cloves (minced) and cook for 30 seconds until fragrant but not browned. Add the 2 tbsp All-Purpose Flour and stir constantly for 1 minute to cook out the raw flour taste. You’ll notice the mixture thicken slightly—that’s your roux forming.
Step 2: Build the Creamy Broth Base
Slowly pour in the 4 cups Chicken Broth while whisking constantly to prevent lumps. Add the 0.5 tsp Dried Thyme and 1 whole Bay Leaf. Increase heat to medium-high and bring to a gentle boil.
Once boiling, reduce heat to medium-low and simmer for 5 minutes. The broth should look slightly thickened from the roux. This step ensures your soup has body before adding the dairy. Watch for small bubbles at the edges—that’s your simmer.
Step 3: Incorporate Potatoes and Cheese
Remove the pot from heat and stir in the 2 cups Instant Mashed Potato Flakes. They’ll absorb the liquid immediately and thicken the soup. Let it sit for 1 minute—you’ll see the flakes plump up and disappear into the broth.
Add the 1 cup Heavy Cream and 1.5 cups Sharp Cheddar Cheese (shredded). Stir until the cheese melts completely and the soup becomes smooth. The texture should coat the back of a spoon. If it’s too thick, add a splash more broth.
Step 4: Season and Finish
Stir in the 1 tsp Salt and 0.5 tsp Black Pepper. Taste and adjust seasoning if needed—remember the cheese adds saltiness too. Return the pot to low heat and warm through for 2-3 minutes, stirring occasionally.
Remove the 1 whole Bay Leaf before serving. The soup should be steaming hot with a velvety texture. Ladle into bowls and garnish as desired. The color will be a rich, creamy gold from the cheese and potatoes.
Pro Tips For Making Potato Soup Recipe Instant Mashed Potatoes
- Heat Broth First: Always warm your chicken broth before mixing in the instant potato flakes—cold liquid makes them clump and turns your soup into a lumpy mess. I learned this the hard way after staring at a pot of gluey spud bits.
- Shred Your Cheese: Skip the pre-shredded cheddar and grate it fresh from the block; the anti-caking agents in bagged cheese make the soup grainy instead of silky. Sounds like a small thing, but it actually changes the outcome.
- Add Cream Last: Stir in the heavy cream at the very end, off the heat, to prevent it from curdling. After ruining a batch by dumping it in too early, I now wait until the soup is smooth and hot before the final swirl.
- Use More Butter: Double the unsalted butter—yes, even if it seems like a lot. Instant mashed potatoes need the fat to taste rich, and a good glug of melted butter at the end makes all the flavors pop.
Best Sauces and Condiments for These Flavors
Creamy Enhancers
Drizzle with sour cream or Greek yogurt for a tangy contrast that cuts through the richness. I love adding 2 tbsp per bowl with a sprinkle of chopped chives for color. The cool temperature balances the warm soup beautifully. 💛
Cheesy Upgrades
Extra sharp cheddar on top melts into gooey perfection. For variety, try crumbled bacon bits or shredded Monterey Jack. These add texture and depth without overpowering the creamy base.
Fresh Herb Finishes
A handful of fresh parsley or green onions adds brightness. I chop ¼ cup just before serving to preserve that fresh flavor. Even dried chives work in a pinch from my pantry.
Spicy Kicks
Hot sauce lovers should add Frank’s RedHot or Tabasco to taste. A pinch of cayenne pepper or smoked paprika stirred in during cooking adds warmth. Start with ⅛ tsp and adjust. 🔥
Crunchy Toppings
For texture, top with crushed Ritz crackers or toasted breadcrumbs. I mix ½ cup with 1 tbsp melted butter for extra richness. This contrasts the creamy soup wonderfully.
Fresh Veggie Boost
Steamed broccoli florets or sautéed mushrooms add nutrition. I blanch 1 cup of small florets in the broth before adding potatoes. They soften just enough while keeping their vibrant color.
Nutrition Facts
Frequently Asked Questions
Can I use water instead of broth?
You can, but the flavor will be much blander. For best results, use at least 2 cups broth and 2 cups water with an extra 1 tsp salt and ½ tsp garlic powder to compensate.
Why is my soup too thin?
This usually means the instant potatoes didn’t fully absorb the liquid. Simmer for 2-3 minutes longer, or stir in an extra ¼ cup potato flakes and let sit for 1 minute.
Can I make this in a slow cooker?
Yes! Sauté the onion and garlic first, then combine all ingredients except cream and cheese in the slow cooker. Cook on low for 2-3 hours, then stir in dairy at the end.
How can I make it dairy-free?
Swap the cream for coconut milk and use dairy-free cheddar. The texture will be slightly different but still creamy. Add a pinch of nutritional yeast for cheesy flavor.
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