Heat enough oil to cover the bottom of a large saute pan.

Add steak, peppers, and onions. Season. Saute on high heat until steak is cooked to rare.

Add garlic. Cook until fragrant, about 30 seconds.

Combine sherry, coconut vinegar, soy sauce, and sesame oil. Whisk. Add to pan.

Cook until liquid is evaporated, approximately 2-3 minutes.

Variations; Other bell peppers, poblano, celery, habanero, basil, cilantro, scallions, chives, ramps, cayenne, leeks, crushed pepper flakes, tamari, beef stock, mirin, rice vinegar, sake, celery seed, lemongrass, lime, pineapple, mango, papaya, vinegar, corn, paprika, shallots, ginger, radish, honey, sugar, red onion, black pepper, lemon, worcestershire, ponzu, hoisin, star anise, orange, oyster sauce, fish sauce,