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These slow cooker onion butter potatoes have quickly become my go-to for effortless and comforting sides. They bring together tender potatoes and rich buttery seasoning with just a few simple ingredients.
Ingredients
- Three pounds small red potatoes: washed and cut into bite-size chunks. Small red potatoes hold their shape well and have thin skins that add color and texture
- Half cup unsalted butter: melted. Unsalted butter lets you control the salt level, and melting it ensures even coating
- Two packets dry onion soup seasoning mix: This seasoning blend is the magic that infuses that iconic onion flavor and a hint of savory herbs. Look for a quality brand without too many additives
Step-by-Step Instructions
- Prepare the potatoes:
- Rinse potatoes under cool running water scrubbing gently to remove any dirt. Dry thoroughly with a clean towel. Cut into evenly sized chunks or quarters so they cook evenly throughout
- Coat the slow cooker:
- Spray the inside of your slow cooker with cooking spray or butter. This prevents sticking and makes cleanup easier. Spread the potato chunks evenly inside
- Mix the butter and seasoning:
- Melt the butter fully in the microwave or on the stove until liquid. Stir in the dry onion soup mix until the spices combine well and the mixture thickens slightly
- Coat the potatoes:
- Drizzle the butter seasoning mixture evenly over the potatoes. Toss gently with a spoon or clean hands right inside the slow cooker until each chunk is glossy and coated with the onion bits
- Cook low and slow:
- Cover and cook on low for 4 to 5 hours or on high for 2 to 3 hours until potatoes are tender and fork pierces easily. Stir once halfway through to spread the buttery flavor and encourage even cooking
- Finish and serve:
- Turn off the slow cooker once potatoes are soft. Stir one more time to lift flavorful bits from the bottom. Transfer to a serving dish and spoon extra butter sauce on top. Serve warm and enjoy
Storage Tips
Store leftovers in an airtight container in the refrigerator for up to four days. Reheat gently in the microwave or covered in a warm oven to keep potatoes soft and moist. You can also freeze for up to three months but texture may soften slightly.
Ingredient Substitutions
If you prefer, Yukon gold or baby potatoes work well but adjust cooking time to ensure tenderness. You can swap unsalted butter for olive oil for a lighter option, though the flavor will change. For the seasoning mix, homemade onion soup mix with powdered onion, herbs, and broth powder can be used.
Serving Suggestions
These potatoes shine next to grilled steak, roasted chicken, or baked fish. They also make a cozy addition to a vegetarian meal with sautéed greens or mushrooms. A sprinkle of fresh parsley or chives just before serving adds brightness and color.
Cultural Context
Onion soup seasoning mix has roots in classic midwestern and home-cooked American meals. It’s a pantry staple that simplifies adding umami-rich onion and herb flavors, often connected to family dinners passed down through generations.
Frequently Asked Questions
- What type of potatoes work best for this dish?
Small red potatoes are ideal due to their tender skin and creamy texture, which hold well during slow cooking.
- Can I prepare the potatoes ahead of time?
Yes, cutting and coating the potatoes with butter and seasoning in advance helps flavors meld but keep refrigerated until cooking.
- How does slow cooking affect the potatoes?
Slow cooking allows the potatoes to become tender and absorb the buttery onion mixture, enhancing depth and richness.
- Is it necessary to stir during cooking?
Stirring about halfway promotes even seasoning distribution and ensures all pieces cook uniformly.
- What variations can enhance the flavor?
Adding fresh herbs like thyme or rosemary can complement the onion butter and add aromatic layers.
