These Onion Butter Potatoes are a humble one-pot wonder—baby potatoes slow-cooked in a rich, golden sauce of butter, onions, and herbs until fork-tender and deeply flavorful. With just 5 simple ingredients, they’re the perfect side for roast chicken, grilled steak, or holiday feasts—and require zero hands-on time after prep.
No peeling, no pre-boiling, no fuss—just set it and forget it!
Why You’ll Love This Recipe
- 🥔 Only 5 ingredients—pantry staples!
- ⏱️ 10 minutes prep, then walk away
- 💛 One slow cooker = easy cleanup
- 💸 Costs under $6—feeds 6 generously
- 🌾 Naturally nut-free & gluten-free
Ingredients You’ll Need
(6-quart slow cooker)
- 2 lbs (900g) baby potatoes, halved (Yukon Gold or red)
- ½ cup (1 stick / 115g) unsalted butter, cut into small pieces
- 1 large yellow onion, thinly sliced
- 1 tsp garlic powder (or 2 cloves minced garlic)
- 1 tsp dried thyme or rosemary
- Salt & black pepper to taste
- Optional: ¼ cup chicken broth (for extra moisture)
💡 Pro Tips:
- Don’t peel potatoes—skin adds flavor and holds shape.
- Layer onions on bottom—they form a natural “bed” that prevents sticking.
- Use real butter—margarine won’t give the same richness.
Step-by-Step Instructions (Tender, Buttery, Foolproof)
1. Layer in Slow Cooker
- Place sliced onions in the bottom of the slow cooker.
- Add potato halves on top.
- Sprinkle with garlic powder, thyme, salt, and pepper.
- Dot evenly with butter pieces.
- Optional: Pour ¼ cup chicken broth around edges for extra sauciness.
2. Cook Low & Slow

