Beef Bulgogi Bowls

In a medium bowl, combine half the vinegar, ½ tsp sugar (1 tsp for 4 servings), and a pinch of salt. Trim ends from cucumber. Using a peeler, shave cucumber lengthwise into ribbons, rotating as you go until you get to the seedy core; discard core. Toss ribbons into bowl with vinegar mixture. Set aside to pickle, tossing occasionally, until ready to serve.

Heat a drizzle of oil in a large, preferably nonstick, pan over mediumhigh heat. Add carrots and cook, stirring, until just tender, 1 minute. Season with salt and pepper. Turn off heat; transfer to a plate.

Heat another drizzle of oil in same pan over medium-high heat. Add scallion whites and cook until fragrant, 30 seconds to 1 minute. Add beef and a pinch of salt and pepper. Cook, breaking up meat into pieces, until browned and cooked through, 5-7 minutes. Stir in half the sesame seeds and remaining vinegar. Cook 30 seconds, then stir in bulgogi sauce and bring to a simmer. Once simmering, turn off heat. Season again with salt and pepper.

Meanwhile, in a small bowl, combine sour cream and as much sriracha as you like. Stir in water 1 tsp at a time until mixture reaches a drizzling consistency. Season with salt.