Crispy, aromatic, and perfect for prime rib.
Rosemary-garlic roasted potatoes are the bold, flavorful side every prime rib dinner needs. Their crispy crust and herbaceous aroma create a satisfying contrast to the rich, tender meat. This recipe is simple yet transformative, turning basic potatoes into a showstopper that completes your holiday feast.
Whether you're hosting a Christmas dinner or a cozy family gathering, these potatoes will elevate your prime rib from ordinary to extraordinary. The rosemary and garlic infuse every bite with earthy warmth, while the high-heat roasting ensures a golden, crispy exterior and fluffy interior.
This recipe is designed for efficiency—no complicated techniques or specialty equipment needed. Just a cast-iron skillet and your oven, and you’ll have a side that pairs perfectly with prime rib, roasted turkey, or any hearty main course.
With a make-ahead option and storage instructions, these potatoes are perfect for busy holiday hosts. Save this recipe and master your prime rib dinner tonight!
Why This Recipe Works
⏰ Quick & Easy
Ready in 60 minutes with minimal prep. No marinating or special tools required.
💰 Budget-Friendly
Uses pantry staples and affordable ingredients for maximum flavor.
👥 Crowd-Pleasing
Perfect for holidays, dinner parties, or family gatherings. Serves 6 with leftovers.
🌟 Flavor Powerhouse
Rosemary and garlic create an aromatic, herbaceous profile that complements prime rib perfectly.
Rosemary-Garlic Roasted Potatoes
Crispy, herbaceous side for prime rib.
🛒 Ingredients
- - 3 lbs (1.36kg) russet potatoes, cut into 1-inch cubes
- - 2 tbsp olive oil
- - 4 garlic cloves, minced
- - 1 tbsp fresh rosemary, finely chopped
- - 1 tsp salt
- - 1/2 tsp black pepper
👨🍳 Instructions
Preheat & Prepare: Preheat oven to 425°F (220°C). Line a large baking sheet with parchment paper.
💡 Use a cast-iron skillet for extra crispiness.
Season Potatoes: In a large bowl, toss potato cubes with olive oil, minced garlic, rosemary, salt, and pepper until evenly coated.
💡 Add a pinch of red pepper flakes for heat.
Roast: Spread potatoes in a single layer on the prepared baking sheet. Roast for 45 minutes, flipping halfway through, until golden and crispy.
💡 For extra crisp, broil for 2-3 minutes at the end.
Rest & Serve: Let rest 5 minutes before serving. Garnish with fresh rosemary sprigs.
💡 Serve immediately for maximum crispiness.
Nutrition (per serving):
Ingredient Notes & Substitutions
Russet Potatoes
Their high starch content creates the perfect crispy crust. Substitute with Yukon Gold for a softer texture.
Substitutions: Sweet potatoes (adjust roasting time), parsnips (for a sweet twist).
Olive Oil
Provides rich flavor and prevents sticking. Can substitute with avocado or vegetable oil.
Substitutions: Butter (for richer flavor), ghee (for higher smoke point).
Fresh Rosemary
Adds aromatic herbaceousness. Dried rosemary works, but fresh is preferred for potency.
Substitutions: Thyme, oregano, or a rosemary-garlic blend.
Garlic
Infuses depth and savory notes. Use roasted garlic for milder flavor.
Substitutions: Garlic powder (1/2 tsp per clove), shallots for sweetness.
Pro Tips for Perfect Roasted Potatoes
🍴 Cutting Technique
Uniform 1-inch cubes ensure even roasting. Use a mandoline for precision.
🔥 Temperature Control
Roast at 425°F (220°C) for crispiness. Avoid overcrowding the pan.
🧂 Seasoning Timing
Season immediately before roasting to prevent sogginess from excess moisture.
📸 Presentation Tip
Arrange potatoes in a single layer. Garnish with rosemary sprigs for visual appeal.
Variations & Customizations
Herb Medley
Mix rosemary with thyme, sage, or parsley for a layered herb profile.
Cheesy Twist
Sprinkle grated Parmesan during the last 10 minutes of roasting.
Spicy Version
Add 1 tsp smoked paprika or chili flakes for heat.
Vegan Option
Use olive oil instead of butter and skip cheese-based garnishes.
Serving Suggestions & Pairings
🍽️ Best Served With:
- Prime rib roast (obviously!) with its rich, fatty texture
- Gravy or au jus for added moisture
- Green bean casserole for balanced nutrition
🍷 Drink Pairings:
Pair with a full-bodied red wine like Cabernet Sauvignon or Merlot. For non-alcoholic options, try a spiced chai or rich coffee.
Make-Ahead Instructions & Storage
Make-Ahead Tips
Roast potatoes up to 2 hours ahead. Reheat in a 350°F oven for 10-15 minutes to restore crispiness.
Refrigerator Storage
Store cooled potatoes in an airtight container for up to 3 days. Reheat in oven for best texture.
Freezer Storage
Freeze roasted potatoes in a single layer for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating Instructions
Avoid microwave for best results. Use oven or air fryer to maintain crispiness.
Troubleshooting & Common Questions
Q: Why are my potatoes soggy?
A: Overcrowding the pan prevents crisping. Roast in batches if needed.
Q: Can I use frozen potatoes?
A: Yes, but thaw completely first and pat dry to remove excess moisture.
Q: How to fix under-seasoned potatoes?
A: Toss with additional rosemary and garlic during the last 10 minutes of roasting.
Q: Can I double the recipe?
A: Yes, but use two baking sheets to avoid overcrowding.
Final Thoughts
These rosemary-garlic roasted potatoes are more than just a side—they’re a flavor experience that transforms your prime rib dinner into a memorable feast. The crispy texture and aromatic herbs create a harmony that’s impossible to resist.
Whether you’re a seasoned chef or a holiday cooking novice, this recipe delivers restaurant-quality results with minimal effort. Save it, share it, and make it your go-to pairing for prime rib, roasted meats, or any hearty main course.
