Loosely inspired by bulgogi, this steak is marinated for several hours and then quickly grilled. While cola can be found in Korean marinades—it adds sweetness and helps tenderize the meat—bacon is not traditional. The peppers are also unconventional but bring color and crunch to this simple steak dinner.
Pierce the steak a few times with a fork. Toast the sesame seeds in a skillet over medium heat until golden, shaking the pan, 2 to 3 minutes. Transfer to a plate to cool.
Combine the sesame seeds, garlic, cola, soy sauce, brown sugar, sesame oil, 1 teaspoon salt and 1/2 teaspoon pepper in a large bowl, stirring to dissolve the sugar. Add the steak, onion wedges and bacon, turning to coat. Cover and refrigerate 4 hours or overnight.
Remove the steak and onion wedges from the marinade with a slotted spoon and transfer to a baking sheet. Heat a grill pan over high heat. Grill the onion wedges and peppers, turning, until charred, 8 to 10 minutes. Transfer to a platter. Grill the steak until charred, 4 to 5 minutes per side for medium rare. Add to the platter.
The marinated bacon is a tasty bonus to this recipe. Pat it dry and cut into ½-inch pieces. Cook the bacon until crisp and add it to one of our fried rice recipes for the perfect side dish.