Grilled Porterhouse Steak with Garlic-Herb Butter and Charred Asparagus

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A perfectly grilled porterhouse steak topped with a rich garlic-herb butter, served alongside tender charred asparagus. This american-inspired beef ready in about 35 minutes pairs olive oil, divided salt, divided black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 750 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 15 min Serves 2 American cuisine 750 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat grill to high heat. Rub 2 porterhouse steaks (12 oz each) on both sides with 2 tbsp olive oil, 1 tsp salt, and 1/2 tsp black pepper each. Let rest at room temperature for 15 minutes.
  2. Step 2: Meanwhile, in a small bowl, combine 6 tbsp softened unsalted butter, 3 minced garlic cloves, 2 tbsp chopped fresh parsley, 1 tsp fresh thyme leaves, 1 tsp lemon juice, and 1/2 tsp salt. Mix until smooth and refrigerate until needed.
  3. Step 3: Grill steaks for about 4-5 minutes per side for medium-rare, or until desired doneness. Transfer to a plate and top each steak with half of the garlic-herb butter, allowing it to melt.
  4. Step 4: Toss 1 lb trimmed asparagus spears with 1/2 tsp salt, 1/2 tsp black pepper, and a drizzle of olive oil. Grill asparagus for 3-4 minutes, turning occasionally, until tender and lightly charred.
  5. Step 5: Serve steaks with grilled asparagus and lemon wedges on the side for squeezing over the vegetables and meat.

Equipment for this recipe

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Frequently asked questions

How long does Grilled Porterhouse Steak with Garlic-Herb Butter and Charred Asparagus take to make?

Total time is about 35 minutes (20 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Grilled Porterhouse Steak with Garlic-Herb Butter and Charred Asparagus?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep olive oil from drying out.

Can I substitute ingredients in Grilled Porterhouse Steak with Garlic-Herb Butter and Charred Asparagus?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Grilled Porterhouse Steak with Garlic-Herb Butter and Charred Asparagus for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Grilled Porterhouse Steak with Garlic-Herb Butter and Charred Asparagus?

American beef like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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