Dinner · Part 2 of 3: Instructions
Grandma’s Crockpot Old-Fashioned Potato Soup Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before beginning the assembly, ensure the slow cooker insert is clean and properly seated within the heating base. Prepare the vegetables by peeling and dicing the potatoes into uniform one-inch pieces; consistent sizing is crucial for even cooking.
Dice the celery and onion into small, even pieces so they soften at the same rate as the potatoes. Measure out your broth and evaporated milk ahead of time to make the assembly process seamless. Having all ingredients measured and chopped before starting allows for a quick and organized setup.
Ingredients at a glance (8)
- 2 lbs peeled white potatoes, diced
- 2 stalks celery, diced
- 1 medium yellow onion, diced
- 3 tbsp butter, cut into pats
- 1 tsp dried parsley
- 1/2 tsp black pepper
- 12 oz evaporated milk
- 2 cups vegetable or chicken broth
Instructions
Preparation and Assembly
- Prepare and CombinePlace the diced potatoes into the slow cooker insert. Add the diced celery and onion. Distribute the butter pats evenly over the vegetables. Sprinkle the dried parsley and black pepper over the top.Look for Vegetables should be evenly distributed across the bottom of the slow cooker.Tip Cut the potatoes into uniform one-inch chunks to ensure they cook at the same rate.
At the end of this phase, the slow cooker should be filled with the prepared vegetables, seasonings, and liquids. Everything is ready for the long, slow cook. Ensure the lid is securely in place to create a sealed environment that will allow the flavors to meld effectively over the next few hours.
Slow Cooking Process
- Add Liquids and CookPour the evaporated milk and broth over the vegetable mixture. Cover the slow cooker with its lid and cook on low for 6 to 8 hours, or on high for 3 to 4 hours, until the potatoes are completely tender and can be easily pierced with a fork.Look for The liquid should just cover the vegetables to ensure even cooking throughout the process.Tip Avoid lifting the lid during the first few hours to maintain a consistent temperature inside the cooker.
During this phase, the vegetables will soften and the liquids will transform into a creamy base. You will notice a savory, comforting aroma filling the kitchen.
The potatoes should be tender and easily pierced with a fork by the time the timer goes off, indicating the soup has reached the correct consistency.
Finalizing the Soup
- Finalize and ServeOnce the cooking time is complete, ensure the soup has reached the desired consistency. Gently stir the mixture to incorporate the butter and allow the potatoes to break down slightly for a thicker texture. Serve hot in shallow bowls.Look for The soup should look thick and creamy, with soft potato pieces and tender vegetables throughout.Tip For a smoother soup, use a potato masher to break down some of the chunks directly in the pot before serving.
In the final phase, the soup is brought to its finished state. The texture should be thick, creamy, and uniform. A quick stir should integrate any butter that remains on the surface. Check the seasoning one last time, add a pinch of salt if needed, and ensure the soup is hot before serving.
Common mistakes
A common mistake is cutting the potatoes into uneven sizes, which leads to some pieces being mushy while others remain hard. Another frequent error is using high heat for the entire duration; while the high setting is faster, the low setting provides a more uniform texture and better flavor development.
Additionally, do not skip the step of ensuring the butter is distributed over the vegetables; it helps create a better mouthfeel. Finally, avoid over-stirring the soup before it is fully cooked, as this can break the potatoes down prematurely and alter the desired texture.
How to tell it’s done
The soup is done when the potatoes are fork-tender throughout. Test a few larger chunks with a fork; they should offer no resistance when pierced. The liquid should have thickened into a creamy consistency, and the vegetables should be soft but not falling apart.
If the soup appears too thin, you can gently mash a few potato chunks against the side of the pot to release more starch and thicken the broth. The total cooking time should result in a warm, fragrant dish that is ready to be served immediately.
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)