Crush garlic and black peppercorns with a mortar and pestle. Mix in palm sugar, golden mountain sauce, and oyster sauce to make the beef marinade.

Rub the marinade all over your steak and let it sit for at least 30 minutes to an hour to soak up the flavors.

Make the dipping sauce by mixing fish sauce, fresh lime juice, red pepper flakes, toasted rice powder, and in a small bowl. Garnish with some freshly chopped coriander.

Grill the steak on a charcoal grill or in a grilling pan over medium-high heat for about 3 minutes each side, depending on how thick your steak is, to get it medium rare or as you like it. Let the steak rest a bit before cutting it into thin slices. Serve it with the crying tiger sauce. Enjoy!