2 tablespoons minced fresh garlic
1 tablespoon Adobo Seasoning Blend
1/2 teaspoon Leaf Oregano
1/2 teaspoon Black Ground Pepper
1 to 1-1/2 pounds thin cut sirloin OR T-bone steak
1/4 cup white vinegar
2 tablespoons corn oil
1 tablespoon corn oil
1 large white onion, peeled, sliced into rings and separated
To taste Adobo Seasoning Blend
Combine garlic, Adobo seasoning, oregano and black pepper in a small bowl. Rub spice mixture over steak.
Place steak in a large resealable plastic freezer bag and seal tightly; add 2 tablespooons oil and vinegar. Seal bag and mix well. Refrigerate for at least 1 hour or overnight.
Heat 1 tablespoon oil in a large skillet over medium-high heat. Add onion rings and cook for 2 to 3 minutes or until lightly browned but still firm. Season to taste with adobo seasoning. Remove onions to a plate and set aside.
Remove steak from marinade; discard marinade. Sear steaks for 3 to 5 minutes per side or to desired doneness. Remove steaks to serving plate and top with onion rings.