While the steak marinates, make the dressing. Whisk together the vinegar, honey, garlic, Dijon salt, Italian seasoning, and pepper. Slowly pour in the olive oil while whisking. Continue to whisk until combined. Set aside.
¼ cup balsamic vinegar, 2 tsp honey, 1 clove garlic, 2 tsp Dijon mustard, ½ tsp kosher salt, ½ tsp Italian seasoning, Freshly ground black pepper, 6 tbsp olive oil