Dinner · Part 2 of 3: Instructions
Velvety Crockpot Parsnip Potato Mash Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 8
Before you start
Peel and cube the Yukon Gold potatoes and parsnips into 1-inch pieces. Peel the garlic cloves. Measure the chicken stock and have the butter and cream cheese ready. If using fresh rosemary, rinse and pat dry. Set out the cream cheese to soften while the vegetables cook. Place the slow cooker on a heatproof surface and plug it in before starting.
Ingredients at a glance (7)
- 3 lb Yukon Gold potatoes, peeled and cubed
- 2 lb parsnips, peeled and cubed
- 1 cup chicken stock
- 6 cloves garlic, peeled
- 2 sprigs fresh rosemary
- 1 stick butter (4 oz)
- 8 oz herb cream cheese, softened
Instructions
Layer and Slow-Cook
- Layer the VegetablesPlace the cubed Yukon Gold potatoes and parsnips in the slow cooker. Add the chicken stock, garlic cloves, rosemary sprigs, and the stick of butter. Stir gently to coat the vegetables with the stock and butter.Look for The vegetables should be evenly coated and the butter distributed in pieces.Tip Cut the potatoes and parsnips into similar-size cubes so they cook evenly.
- Cover and CookCover the slow cooker with the lid. Cook on HIGH for 4 hours, until the potatoes and parsnips are fork-tender and nearly falling apart. Do not open the lid during cooking to keep the steam inside.Look for A fork inserted into a potato cube meets no resistance.Tip If the slow cooker runs hot, check at 3.5 hours; the vegetables should be very soft.
After the first phase, the slow cooker is filled with vegetables, stock, garlic, rosemary, and butter. The butter has melted into the liquid, and the aroma of garlic and rosemary fills the kitchen.
The vegetables are not yet tender; they need the full 4 hours to become soft enough for whipping. The liquid should be gently simmering around the edges, and the vegetables should be partially submerged.
Whip with Cream Cheese
- Add the Cream CheeseRemove the rosemary sprigs and discard. Add the softened herb cream cheese to the slow cooker. Use a hand mixer to whip the mixture until smooth and fluffy, or mash with a potato masher for a more rustic texture.Look for The mash becomes glossy and holds soft peaks when whipped.Tip For extra smoothness, use a hand mixer on low speed to avoid overworking.
- Whip Until SilkyContinue whipping for 1 to 2 minutes, scraping down the sides of the slow cooker as needed, until the mash is light, airy, and completely free of lumps. Adjust seasoning with salt and pepper if desired.Look for The mash is fluffy and smooth, with no visible chunks.Tip Do not over-whip or the texture can become gummy.
The rosemary sprigs are removed, and the herb cream cheese is added to the hot vegetables. As the hand mixer runs, the mixture transforms from chunky pieces into a smooth, glossy puree.
The mash becomes lighter and fluffier with each pass, and the cream cheese melts into the hot vegetables, creating a silky, cohesive texture. The color is a pale ivory, and the scent is rich with herbs and butter.
Serve with Browned Butter
- Serve WarmTransfer the mash to a warm serving bowl. Drizzle with browned rosemary butter and crack black pepper over the top. Serve immediately while hot.Look for The mash is steaming and the butter pools in the swirls.Tip For a browned rosemary butter, melt butter in a small pan until golden and add a sprig of rosemary.
The finished mash is transferred to a serving bowl, and the browned rosemary butter is drizzled over the top in golden ribbons. Cracked black pepper adds flecks of dark contrast. The mash is steaming, soft, and inviting, ready to be spooned onto plates. The texture is pillowy and smooth, and the flavor is savory with a hint of sweetness from the parsnips.
Common mistakes
One common mistake is opening the slow cooker lid during cooking, which lets out steam and extends the cooking time. Another is undercooking the vegetables — they must be very soft to whip into a smooth mash.
Over-whipping can make the potatoes gummy, so stop as soon as the mixture is fluffy. Also, be sure to remove the rosemary sprigs before whipping, as the leaves can separate and create a gritty texture. Finally, avoid using cold cream cheese; it will not incorporate as smoothly.
How to tell it’s done
The mash is done when the potatoes and parsnips are fork-tender and easily pierced with no resistance. After whipping, the texture should be smooth, fluffy, and glossy, with no visible lumps. The mash should hold its shape when spooned but be soft and creamy.
If it seems too thick, stir in a splash of warm chicken stock or milk to reach the desired consistency. Since there are no raw proteins in this recipe, no internal temperature check is needed.
Up next · Part 3 of 3
4 variations · storage & make-ahead · 5 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)