Irish Whiskey Steak with Creamy Colcannon Mash

Irish Whiskey Steak with a rich, boozy marinade and creamy Colcannon mash. After making this many times, I’ve perfected the balance of whiskey and spices for a steak that’s crispy on the outside and tender on the inside. The creamy Colcannon mash is the perfect cozy side dish to soak up every last bit of the pan sauce. Jump to the recipe or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Easy Bruschetta with Heirloom Tomatoes and Fresh Basil and Creamy Coconut Chicken Brothy Rice Recipe for Dinner.

Why This Irish Whiskey Steak with Creamy Colcannon Mash Is Pure Comfort
- The whiskey marinade adds a depth of flavor you won't find in regular steak.
- Creamy Colcannon mash is the perfect comforting side dish.
- This recipe is better than takeout and ready in just 30 minutes.
- The whiskey in the marinade cooks off, leaving no alcohol taste in the final dish.
What You'll Need for Irish Whiskey Steak with Creamy Colcannon Mash
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- 1.5 lbs (700g) sirloin or ribeye steak
- 1 cup (240ml) Irish whiskey
- 4 cloves garlic, minced
- 2 tbsp (30ml) soy sauce
- 2 tbsp (30ml) olive oil
- 1 tsp (5ml) black pepper
- 1 tsp (5ml) salt
- 1 lb (450g) potatoes, peeled and diced
- 1 small head (225g) cabbage, thinly shredded
- 1/2 cup (120ml) milk
- 4 tbsp (57g) butter
- Salt and pepper, to taste
- Whiskey
- Garlic
- Soy sauce
- Black pepper
- Salt
- Butter
- Optional: Fresh parsley, chopped
- Optional: Sour cream or Greek yogurt

📝 Ingredient Notes
- Irish whiskey: Ensure you use real Irish whiskey for the best flavor.
🛒 Tools & Equipment I Recommend
- Cast iron skillet — Even heat distribution for perfect searing. → See on Amazon
- Digital meat thermometer — Ensures your steak is cooked to perfection. → See on Amazon

How to Make Irish Whiskey Steak with Creamy Colcannon Mash
- Marinate the steak: Combine whiskey, garlic, soy sauce, olive oil, black pepper, and salt. Pour over steak, ensuring it's fully coated. Marinate for at least 30 minutes or up to overnight.
- Cook the potatoes: Boil potatoes until tender. Drain and mash with milk, butter, salt, and pepper.
- Sauté the cabbage: Cook cabbage in a pan until tender. Mix into mashed potatoes for Colcannon mash.
- Cook the steak: Heat a cast iron skillet over high heat. Add marinated steak and cook to desired doneness (145°F/63°C for medium). Let rest for 10 minutes before slicing.
- Serve: Slice steak and serve with Colcannon mash. Drizzle pan juices over the top.
Cook's Tips for Perfect Irish Whiskey Steak with Creamy Colcannon Mash
- Common mistake and fix: Overcooking the steak can make it tough. Use a meat thermometer to ensure it's cooked to 145°F (63°C) for medium doneness.
- Pro tip: For extra flavor, deglaze the skillet with a splash of whiskey after removing the steak. Scrape up the browned bits and pour over the steak before serving.
- Pro tip: For a smoky flavor, you can grill the steak instead of pan-searing.
- Pro tip: Make the Colcannon mash ahead of time and reheat in the microwave or oven.
Storing & Reheating Irish Whiskey Steak with Creamy Colcannon Mash
Short-Term Storage
Store in an airtight container in the fridge. Store leftovers in an airtight container for up to 3 days. Make-ahead tip: Marinate the steak up to 24 hours ahead. Cook the Colcannon mash up to 2 days ahead.
Freezing Irish Whiskey Steak with Creamy Colcannon Mash
Freeze cooked steak for up to 2 months. Thaw overnight in the fridge before reheating.
How to Reheat Without Drying It Out
Oven: Reheat steak in the oven at 350°F (180°C) for 10-15 minutes. Microwave: Reheat steak in the microwave for 1-2 minutes, then finish in the oven for 5 minutes.
Recipe Notes
- Chef tip: For a smoky flavor, you can grill the steak instead of pan-searing.
- Best substitution: Substitute the whiskey with beef broth for a non-alcoholic version.
- Make-ahead: Marinate the steak up to 24 hours ahead. Cook the Colcannon mash up to 2 days ahead.
- Scaling: This recipe can be easily doubled or halved to serve more or fewer people.
- Troubleshooting: If the steak is sticking to the pan, it's not hot enough. Preheat the pan over high heat for a few minutes before adding the steak.
Want to level up this recipe?
High-quality steak knives — Makes slicing tender steak a breeze. → Check price on Amazon
Irish Whiskey Steak with Creamy Colcannon Mash

Ingredients
Main Ingredients
- 1.5 lbs (700g) sirloin or ribeye steak
- 1 cup (240ml) Irish whiskey
- 4 cloves garlic, minced
- 2 tbsp (30ml) soy sauce
- 2 tbsp (30ml) olive oil
- 1 tsp (5ml) black pepper
- 1 tsp (5ml) salt
- 1 lb (450g) potatoes, peeled and diced
- 1 small head (225g) cabbage, thinly shredded
- 1/2 cup (120ml) milk
- 4 tbsp (57g) butter
- Salt and pepper, to taste
Seasonings
- Whiskey
- Garlic
- Soy sauce
- Black pepper
- Salt
- Butter
Optional Toppings
- Fresh parsley, chopped
- Sour cream or Greek yogurt
Instructions
- Marinate the steak: Combine whiskey, garlic, soy sauce, olive oil, black pepper, and salt. Pour over steak, ensuring it's fully coated. Marinate for at least 30 minutes or up to overnight.
- Cook the potatoes: Boil potatoes until tender. Drain and mash with milk, butter, salt, and pepper.
- Sauté the cabbage: Cook cabbage in a pan until tender. Mix into mashed potatoes for Colcannon mash.
- Cook the steak: Heat a cast iron skillet over high heat. Add marinated steak and cook to desired doneness (145°F/63°C for medium). Let rest for 10 minutes before slicing.
- Serve: Slice steak and serve with Colcannon mash. Drizzle pan juices over the top.
Notes
- Chef tip: For a smoky flavor, you can grill the steak instead of pan-searing.
- Best substitution: Substitute the whiskey with beef broth for a non-alcoholic version.
- Make-ahead: Marinate the steak up to 24 hours ahead. Cook the Colcannon mash up to 2 days ahead.
- Scaling: This recipe can be easily doubled or halved to serve more or fewer people.
- Troubleshooting: If the steak is sticking to the pan, it's not hot enough. Preheat the pan over high heat for a few minutes before adding the steak.
Storage
- Fridge: Store leftovers in an airtight container for up to 3 days.
- Freezer: Freeze cooked steak for up to 2 months. Thaw overnight in the fridge before reheating.
- Oven reheat: Reheat steak in the oven at 350°F (180°C) for 10-15 minutes.
- Microwave reheat: Reheat steak in the microwave for 1-2 minutes, then finish in the oven for 5 minutes.
- Make ahead: Marinate the steak up to 24 hours ahead. Cook the Colcannon mash up to 2 days ahead.
Nutrition Per Serving
- Calories: 650
- Protein: 45g
- Fat: 30g
- Carbs: 35g
- Fiber: 3g
- Sugar: 4g
- Sodium: 1200mg
- Cholesterol: 130mg
- Sat. Fat: 14g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Irish Whiskey Steak with Creamy Colcannon Mash FAQs
Yes, you can marinate the steak up to 24 hours ahead. Cook the Colcannon mash up to 2 days ahead.
Overcooking the steak can make it tough. Use a meat thermometer to ensure it's cooked to 145°F (63°C) for medium doneness.
Yes, you can freeze cooked steak for up to 2 months. Thaw overnight in the fridge before reheating.
Yes, you can cook the steak in the air fryer at 400°F (200°C) for 10-15 minutes, then finish in the oven for 5 minutes.
You can substitute the whiskey with beef broth for a non-alcoholic version.
A Warm Final Note
I can’t wait for you to try Irish Whiskey Steak with Creamy Colcannon Mash and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!






