Butter‑Basted Grilled Filet Mignon with Charred Garlic‑Herb Butter & Smoky Dijon Dipping Sauce

How to Make Butter‑Basted Grilled Filet Mignon with Charred Garlic‑Herb Butter & Smoky Dijon Dipping Sauce

1. 1

   Step 1: Make the charred garlic‑herb compound butter

   Heat the grill for direct high heat (see Step 2 for grill preheat guidance). Place the peeled garlic cloves directly on the hot grate or in a small foil packet and char 6–10 minutes, turning once, until blackened and softened. Meanwhile, let 2/3 of the butter soften at room temperature. Mash the charred garlic into the softened butter with the chopped thyme and rosemary, 1 tsp kosher salt and 1/4 tsp black pepper. Pack the mixture into a small log using parchment, twist the ends and refrigerate 10–15 minutes (or freeze 5 minutes) to firm — you’ll use a pat to finish each steak and the remainder for serving.

   For this step

   • 1 tspKosher salt
   • 1/2 tspFreshly ground black pepper
   • 1 cupUnsalted butter (will be split between compound butter and basting) — about
   • 4 clovesGarlic cloves, peeled (for charring)
   • 2 tbspFresh herbs — chopped thyme and rosemary (about 2 Tbsp total)
   
2. 2

   Step 2: Preheat and set up your grill (gas, charcoal, pellet) with two‑zone heat

   You need a very hot sear zone and a cooler indirect zone for carryover cooking. Gas: preheat burners to high (450–500°F / 230–260°C) for 10–15 minutes; then turn off one side to create an indirect zone. Charcoal: bank coals to one side and let coals ash over (20–30 minutes) for white‑hot coals, leaving an indirect side. Pellet: set to 450°F (232°C) and heat 15–20 minutes; if your pellet grill has a direct‑flame or sear mode, use it for the initial sear or plan to finish on a hot cast‑iron pan over the grill. Maintain a direct sear zone around 500°F and an indirect zone around 300–350°F for finishing.
3. 3

   Step 3: Season, sear and butter‑baste on the grill

   Pat steaks very dry. Lightly rub all sides with oil. Season both sides with a little kosher salt and freshly ground pepper (you already seasoned the butter — seasoning the meat directly is essential). Sear steaks over direct high heat: 2–3 minutes per side for a 1½–2" filet (adjust if thinner). After the two sides are seared, move steaks to the indirect zone. Place a small heavy skillet or heatproof pan on the grill near the steaks, add about 3–4 Tbsp of the remaining unsalted butter and let it melt and brown slightly. Tilt the pan and spoon the hot butter over the steaks—baste continuously for 1–3 minutes as they finish on indirect heat. Grill timing guide (approximate finishing times after sear, for 1½–2" steaks): Gas — 3–6 min indirect; Charcoal — 3–6 min indirect; Pellet — 4–8 min indirect (or use a hot cast‑iron skillet and baste). Use an instant‑read thermometer: pull steaks when they reach 120–125°F for rare, 125–130°F for medium‑rare, or 135°F for medium (see carryover note).

   For this step

   • 4 eachCenter‑cut filet mignons (about 6–8 oz / 180–225 g each), trimmed and patted dry
   • 2 tbspNeutral oil (canola, grapeseed or avocado) for searing
4. 4

   Step 4: Carryover cooking and resting

   Carryover will raise the internal temp about 5°F (2–3°C) after you remove steaks from the heat. Aim to pull steaks about 5°F below your target final temp (for medium‑rare target pull 125–130°F so final rests to 130–135°F). Transfer steaks to a warm cutting board, tent loosely with foil and rest 5–10 minutes to let juices redistribute. While resting, top each hot steak with a 1/2‑inch slice (about 1 Tbsp) of the chilled charred garlic‑herb butter so it melts over the meat.
   
5. 5

   Step 5: Make the smoky Dijon dipping sauce

   While steaks rest, whisk together 1/3 cup Dijon mustard, 2 Tbsp mayonnaise, 1 tsp smoked paprika, 1 tsp honey, 1 Tbsp lemon juice and 1 tsp Worcestershire (or 1/4 tsp liquid smoke) in a small bowl. Taste and season with a pinch of salt and pepper. Adjust smoked paprika or liquid smoke for a stronger smoky note. This takes about 3–5 minutes and can be made ahead.

   For this step

   • 1 batchSmoky Dijon dipping sauce (makes ~¾ cup): 1/3 cup Dijon mustard, 2 Tbsp mayo, 1 tsp smoked paprika, 1 tsp honey, 1 Tbsp lemon juice, 1 tsp Worcestershire or 1/4 tsp liquid smoke; salt & pepper to taste
   
6. 6

   Step 6: Plate, finish and serve — late‑summer cookout tips

   Serve each steak whole or sliced across the grain, topped with the melting garlic‑herb butter and a drizzle of pan juices. Spoon the smoky Dijon sauce into a small ramekin for dipping. For a late‑summer cookout, pair with grilled corn, blistered tomatoes, or a crisp green salad and offer flaky sea salt and lemon wedges at the table. If slicing, present 1 fillet per person (about 200 g) and finish with an extra sprinkle of flaky sea salt for contrast.
   

1. Heat the grill for direct high heat (see Step 2 for grill preheat guidance). Place the peeled garlic cloves directly on the hot grate or in a small foil packet and char 6–10 minutes, turning once, until blackened and softened. Meanwhile, let 2/3 of the butter soften at room temperature. Mash the charred garlic into the softened butter with the chopped thyme and rosemary, 1 tsp kosher salt and 1/4 tsp black pepper. Pack the mixture into a small log using parchment, twist the ends and refrigerate 10–15 minutes (or freeze 5 minutes) to firm — you’ll use a pat to finish each steak and the remainder for serving.
2. You need a very hot sear zone and a cooler indirect zone for carryover cooking. Gas: preheat burners to high (450–500°F / 230–260°C) for 10–15 minutes; then turn off one side to create an indirect zone. Charcoal: bank coals to one side and let coals ash over (20–30 minutes) for white‑hot coals, leaving an indirect side. Pellet: set to 450°F (232°C) and heat 15–20 minutes; if your pellet grill has a direct‑flame or sear mode, use it for the initial sear or plan to finish on a hot cast‑iron pan over the grill. Maintain a direct sear zone around 500°F and an indirect zone around 300–350°F for finishing.
3. Pat steaks very dry. Lightly rub all sides with oil. Season both sides with a little kosher salt and freshly ground pepper (you already seasoned the butter — seasoning the meat directly is essential). Sear steaks over direct high heat: 2–3 minutes per side for a 1½–2" filet (adjust if thinner). After the two sides are seared, move steaks to the indirect zone. Place a small heavy skillet or heatproof pan on the grill near the steaks, add about 3–4 Tbsp of the remaining unsalted butter and let it melt and brown slightly. Tilt the pan and spoon the hot butter over the steaks—baste continuously for 1–3 minutes as they finish on indirect heat. Grill timing guide (approximate finishing times after sear, for 1½–2" steaks): Gas — 3–6 min indirect; Charcoal — 3–6 min indirect; Pellet — 4–8 min indirect (or use a hot cast‑iron skillet and baste). Use an instant‑read thermometer: pull steaks when they reach 120–125°F for rare, 125–130°F for medium‑rare, or 135°F for medium (see carryover note).
4. Carryover will raise the internal temp about 5°F (2–3°C) after you remove steaks from the heat. Aim to pull steaks about 5°F below your target final temp (for medium‑rare target pull 125–130°F so final rests to 130–135°F). Transfer steaks to a warm cutting board, tent loosely with foil and rest 5–10 minutes to let juices redistribute. While resting, top each hot steak with a 1/2‑inch slice (about 1 Tbsp) of the chilled charred garlic‑herb butter so it melts over the meat.
5. While steaks rest, whisk together 1/3 cup Dijon mustard, 2 Tbsp mayonnaise, 1 tsp smoked paprika, 1 tsp honey, 1 Tbsp lemon juice and 1 tsp Worcestershire (or 1/4 tsp liquid smoke) in a small bowl. Taste and season with a pinch of salt and pepper. Adjust smoked paprika or liquid smoke for a stronger smoky note. This takes about 3–5 minutes and can be made ahead.
6. Serve each steak whole or sliced across the grain, topped with the melting garlic‑herb butter and a drizzle of pan juices. Spoon the smoky Dijon sauce into a small ramekin for dipping. For a late‑summer cookout, pair with grilled corn, blistered tomatoes, or a crisp green salad and offer flaky sea salt and lemon wedges at the table. If slicing, present 1 fillet per person (about 200 g) and finish with an extra sprinkle of flaky sea salt for contrast.