Red Wine Marinated Flank Steak


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It’s just not grilling season in my house unless this red wine marinated flank steak is on the menu.

Red wine marinated flank steak is grilled to perfection.

I received two complimentary bottles of Geyser Peak wines, from the winery, to compare in a post. The opinions are completely mine. 

I love flank steak. I’d have to say it’s one of my favorite cuts of beef. When I approached Geyser Peak Winery about comparing two of their wines I knew I wanted to pair them with my red wine marinated flank steak.

This is a marinade I’ve been making most of my married life, almost 25 years. So when I received the wines and read about them, I knew this dish would be perfect.

Perfectly grilled red wine marinated flank steak really impresses.

Flank steak is a cut of beef common in Columbia but it’s easily found in the United States too. On its own, it can be tough but if you marinate it, in something that includes an acid like wine, the meat will become tender, juicy, and delicious.

Suggestions for Red Wine Marinated Flank Steak

There are a few things to know and remember about flank steak.

  1. Before marinating score the meat in a diamond pattern on one side. Be careful not to slice completely through the beef.
  2. Marinate in a 9 x 13 glass baking dish. Acid (from the wine) and metal don’t work well together so make sure it’s glass. If it’s a smaller size, a ziplock bag will work.
  3. When cutting the beef slice against the grain. It will be far more tender. Trust me on this one.

Geyser Peak Wines

Now for the wines. If you’re not familiar with Geyser Peak wines, you should be. They have been a fixture in Sonoma County, California making wines for 130 years. They were California’s 29th bonded winery and they are perched on a hill across from Geyser Peak mountain.

The geothermal activity of the area makes the region well suited to wine grape cultivation. Geyser Peak wines are crafted from small lots of grapes that are fermented separately and then blended to create balance and character.

While I enjoyed both of these wines my preference was the 2014 Walking Tree Cabernet Sauvignon. Maybe because it has a small percentage of Syrah, which is a varietal I love.

This is not the first time I’ve worked with Geyser Peak. I had the opportunity to create Rosemary Roasted Cornish Hens to pair with their 2016 Russian River Sauvignon Blanc.

There are a few other subtle differences between these wines.

  • While both have a 100% malolactic secondary fermentation in barrels for 21 months, the 2014 Alexander Valley Cabernet Sauvignon first fermentation happens in stainless steel.
  • The Alexander Valley Walking Tree Cabernet Sauvignon has a traditional fermentation and then the 100% malolactic secondary fermentation in small French oak barrels.
  • The Walking Tree has aromas of cassis, mint and chocolate with a bit of spicy oak. The Alexander Valley Cabernet Sauvignon has more fruit aromas like boysenberry and cherry.
  • The 2014 Alexander Valley Cabernet Sauvignon is 100% Cabernet Sauvignon grapes while the 2014 Walking Tree Cabernet Sauvignon is 92% Cabernet Sauvignon, 8% Syrah.

Both wines paired nicely with this flank steak. I would confidently serve either with it. I did use the 2014 Alexander Valley Cabernet Sauvignon for the marinade. Remember, when you use a wine to cook, use one that you would drink and enjoy. No sense in using a wine you don’t like because the flavor of the dish will not be as good.

Red wine marinated flank steak is grilled to perfection.


What to serve with flank steak





Red wine marinated flank steak is grilled to perfection. A lovely dish for entertaining.

Red Wine Marinated Flank Steak

Grilled to perfection, this flank steak makes an occasion special.
5 from 2 votes
Prep Time10 minutes
Cook Time20 minutes
Marinating Time3 hours
Total Time3 hours 30 minutes
Course: Beef Recipes
Cuisine: American
Servings: 4 servings


  • 3/4 cup Geyser Peak Alexander Valley Cabernet Sauvignon
  • 1/2 cup canola oil
  • 1 envelope dried onion soup mix
  • 2 cloves garlic minced
  • 1 1/2 to 2 pound flank steak


  • Score flank steak into a cross hatch pattern forming diamonds, being extra careful not to cut completely through the meat. Set aside.
  • In a glass baking dish, or other non-reactive dish, blend Geyser Peak Alexander Valley Cabernet Sauvignon, canola oil, onion soup mix and minced garlic. Stir until soup mix is dissolved.
  • Add flank steak to marinade and refrigerate 2 – 3 hours.
  • Remove steak from marinate and grill to desired temperature. Discard marinade.
  • When serving, slice steak against the grain.

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  1. That looks perfectly cooked! I’m not familiar with that wine, it looks and sounds delicious! I’ll have to look for it now.

  2. I’m excited to see this as Flank steak is my favorite. We actually had it last night and I had marinated it for hours, BUT I didn’t score the meat first. In fact, I’m wondering why I’ve never done this. I’m definitely adding this step the next time I make it. And your marinade with the wine sounds delicious!

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