start with
6-8 cloves of garlic,
1 cup olive oil,
3/4 cup wostershire (sp?) sauce,
1/2 cup soy sauce,
1/4 cup lemon juice,
1/4 cup spicy brown mustard
1 Tbsp black pepper or more. Grind in some fresh ground if you have it
Put it all in a food processor or blender and beat he** out of it...