---
title: Sirloin Steak & Roasted Garlic Pan Sauce
source:
  name: HelloFresh
  url: https://www.hellofresh.com/recipes/sirloin-steak-and-roasted-garlic-pan-sauce-60f82a0367b2ce1a3350f0ac
servings: 2
prep time: 15 minutes
cook time: 25 minutes
time required: 40 minutes
difficulty: Medium
allergens:
  - Milk
tags:
  - Calorie Smart
  - Sodium Smart
  - Easy Prep
  - Beef
  - Weeknight Dinner
rating: 4.5
rating_count: 9800
source_chef: Michelle Doll Olson
review_highlights:
  - theme: Flavor
    text: Many loved the pan sauce, calling it delicious and the star of the show
  - theme: Ease of prep
    text: Some found timing tricky, with vegetables finishing before steak
image: "https://images.recipes.furrysalamander.com/Beef%20Recipes/Sirloin%20Steak/sirloin-steak-roasted-garlic-pan-sauce.avif"
---
Adjust rack to middle position and preheat oven to 425 degrees. Wash and dry all produce. Cut @broccoli{1%unit} florets into bite-size pieces if necessary. Dice @potatoes{2%unit} into ½-inch pieces. Thinly slice @chives{1%unit}. Peel @garlic{4%clove}. Place whole cloves in the center of a small piece of aluminum foil; drizzle with @olive oil{1%tbsp} and season with @salt{to%taste} and @black pepper{to%taste}. Cinch foil into a secure packet.

Place garlic foil packet on a #baking sheet{}. Toss broccoli on same sheet with a drizzle of @cooking oil{1%tbsp}, salt, and pepper. Roast on middle rack until browned and tender ~{15%minutes}.

Meanwhile, place potatoes in a #large pot{} with enough salted water to cover by 2 inches. Bring to a boil and cook until tender when pierced with a fork ~{15%minutes}. Reserve ½ cup potato cooking liquid, then drain and return potatoes to pot. Mash with @sour cream{2%tbsp}, salt, and pepper until smooth and creamy, adding reserved potato cooking liquid a splash at a time as needed. Keep covered off heat until ready to serve.

While potatoes cook, pat @sirloin steak{1%unit} very dry with paper towels; season with salt and pepper. Heat a drizzle of cooking oil in a #large pan{} over medium-high heat. Add steak and cook to desired doneness ~{5%minutes} per side. Turn off heat; transfer steak to a cutting board to rest for at least ~{5%minutes}. Wipe out pan.

Once garlic is done, carefully transfer to a cutting board and mash with a fork until smooth. Melt 1 TBSP of the @butter{2%tbsp} in the pan used for steak over medium heat. Add mashed garlic (start with half and add more to taste); cook for ~{1%minute}. Stir in @beef demi-glace{1%unit} and ¼ cup water. Simmer until slightly thickened ~{1%minute}. Turn off heat. Stir in remaining butter and any resting juices from steak. Season with salt and pepper.

Slice steak against the grain. Fold half the chives into mashed potatoes. Divide potatoes, broccoli, and steak between plates. Top steak and potatoes with sauce. Garnish with remaining chives and serve.