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Why This Recipe Works
- One-pan wonder: Steak and mushrooms cook sequentially in the same skillet, building layers of flavor while sparing you dishes.
- Reverse sear option: Thick steaks get a gentle oven pre-warm for edge-to-edge rosiness, then a roaring butter baste for that mahogany crust.
- Umami bomb: Mushrooms deglaze the pan, soaking up garlic-butter fond and concentrating juices into a spoon-coating sauce.
- Flexible cuts: Ribeye, strip, sirloin, or even flank—method adapts to whatever looks best at the butcher counter.
- Weeknight timing: Active cooking is 18 minutes; resting happens while you pour wine and slice bread.
- Freezer-friendly: Leftover sliced steak and mushrooms reheat like a dream in a foil packet with a pat of butter.
Ingredients You'll Need
Great steak starts at the store. Look for cuts with abundant marbling—those thin white veins of intramuscular fat melt into juice and flavor. I reach for 1¼-inch-thick boneless ribeyes when I want over-the-top richness, but strip steaks are my go-to for a slightly firmer bite and tidy medallion shape. If budget is king, top sirloin or flank steak still deliver when handled with care; just reduce final cook time and slice across the grain.
Buy mushrooms loose so you can hand-pick creminis (baby bellas) with caps that are still cupped tightly—gills should be closed and pale, not dark and sprawling. Creminis offer deeper flavor than white button mushrooms yet cook quickly without the price tag of shiitakes. If you spot a sale on wild mushrooms, swap in half for a woodsy perfume.
Butter temperature matters. Keep it cold until the moment it hits the pan; chilled cubes emulsify into a glossy sauce rather than separating into greasy puddles. Use unsalted butter so you can control seasoning. Garlic should be fresh—pre-mined jars oxidize and turn acrid under high heat. Flat-leaf parsley adds color and a grassy lift, but watercress or arugula work if you crave peppery notes.
Substitutions worth knowing: Ghee or refined avocado oil can replace the initial high-heat sear fat; finish with cultured butter for nutty complexity. If you’re dairy-free, use 2 tablespoons extra oil plus 1 tablespoon nutritional yeast for umami depth. Tamari stands in beautifully for Worcestershire, lending mellow sweetness without gluten. And should thyme not be in season, a whisper of rosemary or tarragon plays nicely with both beef and mushrooms.
How to Make Garlic Butter Steak and Mushrooms for a Hearty and Juicy Meal
Pat, season, and temper
Remove steaks from refrigerator 25 minutes prior. Blot both sides with paper towels until bone dry; surface moisture is the enemy of crust. Season aggressively with kosher salt and freshly cracked black pepper on top and bottom—about ¾ teaspoon salt per pound. Press seasonings gently so they adhere.
Preheat smartly
Place a heavy cast-iron or stainless skillet on middle oven rack and preheat oven to 275 °F (135 °C). Heating the pan gradually prevents thermal shock and guarantees even conductivity when steak hits metal.
Reverse sear (optional but stellar)
Slide tempered steaks onto the hot pan in the oven for 12 minutes (1-inch thickness) up to 20 minutes (1½-inch). Internal temp should read 90-95 °F (32-35 °C). This gentle under-phase sets proteins for uniform pinkness later.
Stovetop sear with aromatics
Move skillet to burner set to medium-high; add 1 tablespoon canola oil. When oil shimmers, lay steaks away from you. Sear 2 minutes without nudging; proteins need sustained contact to form the coveted Maillard crust. Flip, add 2 tablespoons cold butter, 2 smashed garlic cloves, and 2 thyme sprigs. Tilt pan slightly and baste the surface with foaming butter for 60 seconds.
Check doneness and rest
Insert instant-read thermometer horizontally through the side: 120 °F (49 °C) for rare, 125 °F (52 °C) medium-rare, 135 °F (57 °C) medium. Transfer steaks to a wire rack set over a rimmed sheet; season lightly with flaky salt. Rest 8 minutes so juices redistribute. Tent loosely with foil but leave vents—trapped steam softens crust.
Sauté mushrooms in steak fond
Return same skillet to medium heat—those browned bits equal flavor gold. Add 1 tablespoon butter plus 8 ounces sliced cremini mushrooms in a single layer. Resist stirring for 90 seconds so surfaces caramelize. Sprinkle ½ teaspoon salt to draw out moisture. Continue cooking 4-5 minutes until edges turn amber.
Garlic-butter finish
Stir in 1 tablespoon minced garlic and ¼ teaspoon red-pepper flakes; cook 30 seconds until fragrant. Deglaze with 2 tablespoons Worcestershire plus 1 tablespoon water, scraping browned bits. Reduce heat to low; fold in remaining 2 tablespoons cold butter cubed, swirling pan off heat to create a velvety emulsified sauce. Return steaks briefly to coat, 30 seconds per side.
Slice and serve
Transfer steaks to a board; slice against grain into ½-inch medallions for ribeye/strip or ¼-inch bias for flank. Spoon mushrooms and glossy sauce over top. Shower with chopped parsley and serve immediately with crusty bread or buttery mashed potatoes to capture every drop.
Expert Tips
Dry equals crust
Refrigerate steaks uncovered on a rack overnight; circulating air desiccates the surface for steakhouse-level crust in half the time.
Thermometer trust
A $15 instant-read beats any timing chart. Insert from the side into the thickest part, away from fat pockets.
Butter baste brilliance
Add butter only after the first flip. Starting with butter risks burning milk solids before crust forms.
Mushroom space
Overcrowding mushrooms causes steam; cook in two batches and combine at the end for prime browning.
Sauce sheen
Swirl pan off heat when adding final butter; cooler temps prevent the emulsion from breaking and turning greasy.
Rest smart
Place steaks on a rack, not a plate. Airflow keeps bottoms from steaming and softening that beautiful crust.
Variations to Try
- Blue-cheese crust: In the last minute of cooking, sprinkle ¼ cup crumbled blue cheese over each steak, cover skillet briefly to melt.
- Surf & turf twist: Nestle peeled shrimp into the mushrooms during the final 2 minutes; they’ll poach in garlicky butter.
- Smoky paprika rub: Add ½ teaspoon smoked paprika and ¼ teaspoon ground coffee to your initial seasoning for campfire depth.
- Low-carb plate: Serve over cauliflower mash and replace Worcestershire with coconut aminos for paleo-friendly results.
Storage Tips
Refrigerate: Cool leftovers within two hours. Store sliced steak and mushrooms in shallow airtight containers; cover with a thin layer of sauce to prevent drying. Refrigerate up to 4 days.
Freeze: Slice steak against the grain; place in a single layer on parchment-lined sheet to flash-freeze 1 hour, then transfer to freezer-safe bags with sauce. Exclude as much air as possible; freeze up to 3 months. Thaw overnight in refrigerator.
Reheat: Warm gently in a covered skillet over low with a splash of broth or water until just heated through (120 °F), 5-7 minutes. Microwave works in 30-second bursts at 70% power, but stovetop retains texture.
Make-ahead: Season steaks and refrigerate uncovered up to 24 hours; remove 30 minutes before cooking. Mushrooms can be sliced and stored in a paper-towel-lined container; use within 3 days.
Frequently Asked Questions
Garlic Butter Steak and Mushrooms for a Hearty and Juicy Meal
Ingredients
Instructions
- Prep steaks: Pat dry, season with salt and pepper. Let stand 25 minutes.
- Preheat: Place cast-iron skillet in oven and heat to 275 °F for reverse sear (optional).
- Oven warm: Place steaks in hot oven 12-20 min until 90-95 °F internal. Remove; set skillet on stovetop burner.
- Sear: Heat oil in pan over medium-high. Sear steaks 2 minutes; flip, add 2 Tbsp butter, smashed garlic, thyme. Baste 1 minute.
- Finish & rest: Cook to desired doneness (125 °F for medium-rare). Rest on rack 8 minutes.
- Mushrooms: In same skillet cook mushrooms in 1 Tbsp butter until browned. Add minced garlic and pepper flakes 30 seconds.
- Deglaze: Stir in Worcestershire and water, scraping bits. Lower heat; swirl in final 2 Tbsp cold butter for sauce.
- Serve: Return steaks to coat in sauce. Slice, top with mushrooms, sprinkle parsley.
Recipe Notes
For thicker steaks, increase reverse-sear time by 2 minutes per ½-inch. Always rest meat on a wire rack to preserve crust.
