3 sweet madeira wine sauce Recipes

whole beef tenderloin , about 6 lb before trimming get more d, extra-virgin olive oil, kosher salt, freshly ground pepper, vidalia or other sweet onions (cut into slices 1/4), fresh thyme sprigs, balsamic vinegar, madeira (may substitute tawny port), or more as needed get more, beef stock or reduced-sodium beef broth, beef demi-glace, red wine vinegar, kosher salt, freshly ground pepper, unsalted butter at room temperature, all-purpose flour

firm tomato, cut into wedges, sweet onion, finely chopped, garlic clove, minced, red chili pepper, thinly sliced (optional), sliced pepperoni (optional), low carb ketchup, red wine vinegar, olive oil, sweet white wine (such as muscatel or madeira), worcestershire sauce, salt, black pepper, drops tabasco sauce