Spicy Steak Marinade - cooking recipe

Ingredients

3/4 cup Tabasco sauce
1/2 red onion, thinly sliced
1 (10 ounce) can canned mushroom slices
1/2 cup brown sugar, packed
4 -6 garlic cloves, minced
2 tablespoons ketchup
1/4 teaspoon salt
1/2 teaspoon ground black pepper
1 tablespoon crushed red pepper flakes
1/4 cup Worcestershire sauce
1/4 cup red wine vinegar or 1/4 cup balsamic vinegar
1 tablespoon horseradish

Preparation

Combine all ingredients (if not using right away, be sure to chill).
Note: You can adjust many of the ingredients to taste, i.e. more or less garlic (always more for me), more or less Tabasco, onion etc.
I like to mix the marinade in a large plastic freezer bag and then I add 4 boneless NY Strips (the bag method works best with boneless steaks).
I let the steaks marinade (the longer the better) turning the bag over several times.
And to me, steaks should never be cooked more than medium, I personally am a rare to mid-rare person but for best flavor they should never be cooked more than medium.
Lastly, once I remove the steaks I simmer the remaining marinade and serve it separately as a steak sauce.