• Adjust rack to middle position and preheat oven to 400 degrees. Wash and dry produce. • Peel garlic; place whole clove in the center of a small piece of foil. Drizzle with olive oil and season with salt and pepper. Cinch into a packet. Trim and discard woody bottom ends from asparagus. Dice potatoes into 1/2-inch pieces. Thinly slice chives.

• Place garlic foil packet on a baking sheet. • Roast on middle rack for 15 minutes, then add asparagus to same sheet. Carefully toss with a large drizzle of olive oil, salt, and pepper. • Return to middle rack until garlic is softened and asparagus is browned and tender, 10-12 minutes more.

• 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, 15-20 minutes. • Reserve 1/2 cup potato cooking liquid, then drain and return potatoes to pot. Mash until smooth. Stir in sour cream, half the chives, salt, and pepper. Add reserved potato cooking liquid a splash at a time as needed until potatoes are creamy. • Keep covered off heat until ready to serve.

• While potatoes cook, pat steak* very dry with paper towels; season with salt and pepper. • Heat a drizzle of oil in a large pan over medium-high heat. Add steak and cook to desired doneness, 5-7 minutes per side. • Turn off heat; transfer to a cutting board to rest. Wipe out pan.

• Once garlic is done, carefully transfer to a cutting board and mash with a fork until smooth. • Melt 1 TBSP butter (2 TBSP for 4 servings) in pan used for steak over medium-high heat. Add garlic (start with half and add more if desired); cook for 30 seconds. Stir in demi-glace and 1/4 cup water (1⁄3 cup for 4). Simmer until slightly thickened, 1-2 minutes. Turn off heat. • Stir in another 1 TBSP butter (2 TBSP for 4) and any resting juices from steak until melted and combined. Season with salt and pepper.

• Slice steak against the grain. • Divide mashed potatoes, asparagus, and steak between plates. Top steak and potatoes with sauce. Garnish with remaining chives and serve. Steak is fully cooked when internal temperature reaches 145°.