Instructions
In a medium bowl whisk together the lime juice, lime zest, brown sugar, vegetable oil, fish sauce, sriracha, crushed red pepper flakes ginger and garlic.
Add half the marinade to the steak, coat well and let marinate for 20 minutes and reserve the rest for the salad dressing.
Add butter to a large heavy skillet on high heat and add sear steak for 4 minutes on each side. Don't crowd the pan as the steak will steam instead of sear.
Let steak rest for 10 minutes, then thinly against the grain and toss in the dressing.
To a large bowl add the lettuce, cucumber, tomatoes, cilantro, red onion, green onions and fresh mint.
Toss gently with remaining dressing and top with steak and garnish with chopped peanuts if desired.
