Steak Diane au Poivre (Creamy Peppercorn Diane)

A retro steakhouse classic with a twist: the iconic Diane pan sauce made bolder and silkier with crushed peppercorns and a deeper, glossy finish.

Ingredients

• 2 steaks (sirloin/strip/fillet), 250g / 9oz each
• 1 tsp kosher salt (or 3/4 tsp fine salt)
• 1/2 tsp black pepper, plus **1 tsp coarsely crushed** black peppercorns (the twist)
• 1 tbsp oil (neutral or olive)
• 2 tbsp butter, divided
• 2 garlic cloves, finely minced (pantry staple)
• 1 small shallot, finely minced (or 1/4 small onion)
• 1 tsp Dijon mustard
• 1 tbsp Worcestershire sauce
• 1 tbsp tomato paste
• 1/3 cup beef stock (or water + a pinch of salt if needed)
• 1/2 cup thickened cream (heavy cream)
• 1 tsp lemon juice (or 1–2 tsp vinegar)
• 1 tbsp chopped parsley (optional)

Method

• 1

  Step 1: Season & warm the steaks

  Pat steaks dry. Season both sides with salt and the **1/2 tsp ground pepper**. Let sit 5 minutes while you prep the sauce ingredients (this helps the surface dry for better browning).

• 2

  Step 2: Sear hard for a proper crust

  Heat a large skillet over high heat until very hot. Add oil, then add steaks. Sear **2–3 minutes per side** (for medium-rare depending on thickness), until a deep brown crust forms. Add **1 tbsp butter** in the last 30 seconds and spoon it over the steaks. Transfer steaks to a plate to rest.

• 3

  Step 3: Build the Diane base

  Reduce heat to medium. Add the remaining **1 tbsp butter**. Add shallot and cook **1–2 minutes** until softened and lightly golden. Add garlic and cook **20 seconds** until fragrant.

• 4

  Step 4: The twist: peppercorn punch + glossy depth

  Add the **1 tsp crushed peppercorns** and tomato paste. Stir for **30–45 seconds** until the paste darkens slightly and clings to the pan (this removes rawness and boosts savoriness).

• 5

  Step 5: Deglaze & reduce

  Stir in Worcestershire and Dijon, then add beef stock. Scrape up the browned bits from the pan. Simmer **1–2 minutes** until reduced by about half and smells rich, not watery.

• 6

  Step 6: Finish creamy and balance

  Lower heat to medium-low. Stir in cream and simmer **2–3 minutes** until it coats the back of a spoon (draw a line with your finger; it should hold). Stir in lemon juice. Taste and adjust salt/pepper.

• 7

  Step 7: Serve

  Return steaks (and any resting juices) to the pan for **30 seconds** just to warm through. Spoon sauce generously over. Finish with parsley if using.

Tips

• **Peppercorns:** Crushing them (with a knife flat or mortar) gives pops of heat without turning the sauce gritty like fully ground pepper can.
• **Don’t overcook the steak on the reheat:** Resting juices go into the sauce for flavor; warm the steak briefly at the end.
• **Sauce too thick?** Loosen with a splash of stock/water. **Too thin?** Simmer 1–2 minutes more.
• **What to serve with:** Mashed potatoes, fries, or buttered green beans are perfect for catching every drop of sauce.

Nutrition (per serving, estimate)