Start the rice: Cook the jasmine rice according to package instructions. I start the rice at the same time as the steak so everything finishes around the same time.
Sear the steak: Season the steak generously with salt and pepper. Heat a stainless steel pan over medium-high heat and sear the steak, add 2 tbsp butter, baste the steak and continue until cooked to your liking. Transfer the steak to the oven on keep warm to rest.
Sauté the aromatics: In the same pan (don’t wipe it out), lower the heat to medium and add the chopped onion and garlic. Sauté until softened and fragrant, scraping up any browned bits from the steak.
Simmer with broth: Pour the chicken (or beef) broth into the pan. Let it simmer for a few minutes so the flavors meld and the onions continue to soften.
Blend until smooth: Carefully transfer the broth mixture to a blender and blend until completely smooth. Return the blended broth to the pan.
Season the broth: Stir in the soy sauce, sesame oil, and red chili flakes. Bring to a gentle simmer and taste, adjusting seasoning as needed.
Slice the steak: Remove the steak from the oven and slice against the grain.
Assemble: Spoon the cooked rice into bowls, ladle the garlicky broth over the top, add sliced steak, and finish with a generous spoon of chili oil crunch.