Steak Fries with Herb Garlic Butter and Aqua Sauce

Steak Fries with Herb Garlic Butter and Aqua Sauce is a medium American recipe that serves 2. 950 calories per serving. Recipe by Eater on YouTube.

Prep: 2 hrs 7 min | Cook: 36 min | Total: 3 hrs 3 min

Cost: $34.90 total, $17.45 per serving

Ingredients

  • 2 pieces USDA Prime Chuck Flap Steak (5 oz each, trimmed)
  • 2 oz Beef Trim (Collected from steak trimming, for butter)
  • 4 Tbsp Unsalted Butter (softened)
  • 1 tsp Fresh Thyme (chopped)
  • 1 tsp Fresh Rosemary (chopped)
  • 3 cloves Garlic (minced, added at end of butter)
  • 2 pieces Idaho Russet Potatoes (≈300 g each, 70‑count per box)
  • 2 Tbsp Kosher Salt (for soaking water)
  • 2 Tbsp White Vinegar (for soaking water)
  • 2 Tbsp Beef Tallow (for frying fries)
  • 1 cup Shallots (finely chopped)
  • 1 Tbsp Extra Virgin Olive Oil (for sauce base)
  • 3 Tbsp Cognac (good quality)
  • 1 cup Dry White Wine (Sauvignon Blanc or similar)
  • 2 Tbsp Tamari (gluten‑free soy sauce)
  • 1 tsp Fish Sauce (Thai style)
  • 2 Tbsp Ketchup (Kat Manis) (sweet thickened)
  • 1 Tbsp Lemon Juice (freshly squeezed)
  • 1 Tbsp Cherry Vinegar (or red wine vinegar)
  • 6 cup Chicken Stock (homemade or low‑sodium)
  • 1 cup Heavy Cream (full‑fat)
  • 1 tsp Green Sichuan Peppercorns (toasted)
  • 1 tsp Black Peppercorns (toasted)
  • 0.5 tsp Red Sichuan Peppercorns (optional for color)
  • 2 Tbsp Fresh Chives (chopped for garnish)

Instructions

  1. Trim and Portion Steak

    Trim excess fat from the chuck flap, reserve the trimmings for butter, and cut the meat into two 5‑oz steaks. Pat dry with paper towels.

    Time: PT10M

  2. Render Steak Trim into Butter

    In a small saucepan melt 2 Tbsp unsalted butter over medium‑low heat. Add the beef trim, thyme and rosemary. Cook, stirring occasionally, until the fat renders and the trim is browned, about 10 minutes. Add minced garlic in the last minute.

    Time: PT15M

    Temperature: medium‑low heat

  3. Cut Potatoes

    Wash potatoes, then slice into ¼‑inch strips using a mandoline or fry cutter. Rinse under cold water to remove surface starch.

    Time: PT15M

  4. Soak Potatoes

    Place the cut potatoes in a large bowl, cover with cold water, add 2 Tbsp kosher salt and 2 Tbsp white vinegar. Stir, then refrigerate for at least 1 hour (up to 2 hours).

    Time: PT60M

  5. Prepare Shallot Base

    Finely chop 1 cup shallots. Heat 1 Tbsp olive oil in the wide‑bottom saucepan over medium heat, add the shallots and sweat until translucent, about 5 minutes.

    Time: PT5M

    Temperature: medium heat

  6. Add Garlic to Shallots

    Stir in the minced garlic and cook for 2 minutes until fragrant.

    Time: PT2M

    Temperature: medium heat

  7. Deglaze with Cognac and Wine

    Carefully add 3 Tbsp cognac to the pan (flame may appear). Let it reduce for 1 minute, then pour in 1 cup dry white wine. Simmer for 3 minutes to evaporate most of the alcohol.

    Time: PT3M

    Temperature: medium heat

  8. Add Flavor Boosters

    Stir in 2 Tbsp tamari, 1 tsp fish sauce, 2 Tbsp ketchup, 1 Tbsp lemon juice and 1 Tbsp cherry vinegar. Cook 5 minutes, allowing the mixture to darken slightly.

    Time: PT5M

    Temperature: medium heat

  9. Incorporate Chicken Stock

    Add 6 cups chicken stock, bring to a gentle boil, then reduce heat and simmer until the volume decreases to about 4‑5 cups (≈10 minutes).

    Time: PT10M

    Temperature: medium heat

  10. Finish Sauce with Cream

    Stir in 1 cup heavy cream, raise heat until the sauce just begins to boil, then lower heat and simmer 5 minutes. Add a pinch of toasted green and black Sichuan peppercorns. Strain through a fine mesh into a clean container.

    Time: PT5M

    Temperature: medium‑high heat

  11. Dry and First Fry Potatoes

    Drain soaked potatoes, pat completely dry with paper towels. Heat 2 Tbsp beef tallow in a deep pan to 325°F (163°C). Fry potatoes in batches for 8 minutes until soft but not colored. Remove and drain on paper towels.

    Time: PT8M

    Temperature: 325°F

  12. Second Fry for Crispness

    Increase oil temperature to 375°F (191°C). Return potatoes to the oil and fry 5 minutes until golden and crisp. Transfer to a rack, season lightly with salt.

    Time: PT5M

    Temperature: 375°F

  13. Sear Steak

    Add 2 Tbsp beef tallow to the cast‑iron skillet, heat over high heat until shimmering. Place steaks in the pan, sear 3 minutes without moving, then flip and sear another 3 minutes. Baste continuously with the rendered steak butter from step 2. Use a meat thermometer; target 125°F (52°C) for medium‑rare.

    Time: PT8M

    Temperature: high heat

  14. Rest Steak

    Transfer steaks to a warm plate, loosely cover with foil, and let rest for 8 minutes (or up to 12 minutes for larger cuts).

    Time: PT8M

  15. Toast Peppercorn Blend

    In a small dry skillet, toast the remaining green, black and red Sichuan peppercorns over medium heat for 2 minutes until fragrant. Grind coarsely.

    Time: PT2M

    Temperature: medium heat

  16. Plate and Garnish

    Arrange a generous bed of crisp fries on each plate. Slice the rested steak against the grain and place atop the fries. Spoon warm aqua sauce over the steak, sprinkle toasted peppercorns and chopped chives. Serve immediately with chopsticks.

    Time: PT5M

Nutrition Facts

Calories
950
Protein
45 g
Carbohydrates
70 g
Fat
55 g
Fiber
6 g

Dietary info: Contains meat, Gluten‑free (if tamari gluten‑free), High protein

Allergens: Dairy, Fish

Last updated: March 12, 2026

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Steak Fries with Herb Garlic Butter and Aqua Sauce

Recipe by Eater

Restaurant‑style steak fries featuring USDA‑prime chuck flap steak, hand‑cut Idaho potatoes, a rich herb‑garlic steak butter, and a luxurious aqua sauce made with shallots, cognac, white wine, cream and a blend of peppercorns. Served on a bed of crisp fries and garnished with chives.

MediumAmericanServes 2

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
1h 38m
Prep
1h 8m
Cook
20m
Cleanup
3h 6m
Total

Cost Breakdown

$34.90
Total cost
$17.45
Per serving

Critical Success Points

  • Soaking potatoes in salted water with vinegar
  • Rendering steak trim into butter with herbs
  • Deglazing sauce with cognac and wine
  • Reducing sauce with stock before adding cream
  • Basting steak with herb‑garlic butter while searing

Safety Warnings

  • Hot oil can cause severe burns – use a deep, stable pan and never leave unattended
  • Alcohol flame when deglazing – keep flame away from flammable surfaces
  • Sharp knives – use proper cutting technique and keep fingertips tucked

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