You do have to cook just a little bit on the second night, roasting up the peppers to go with the fajitas, but it’s nothing too onerous. However if you’d rather you can do it the first night in a separate pan in the oven and save them for the second. Be sure to cool and refrigerate them promptly.
This dish has one of the nicest gravies I think I have ever invented. The apple and onion melt together to flavour it beautifully, and the Dijon mustard gives it a lovely tang. It’s a great summer dish because tenderloin cooks pretty quickly, so you won’t have to have the oven on for much more than an hour.
There is a fair amount of vinegar in this recipe, but don’t worry, it makes it taste absolutely delicious. When it combines with the apple and onion it gives a wonderful depth of flavour.
2 onions, red if possible
2 red skinned eating apples
2 pork tenderloins
2 tablespoons cider vinegar
2 tablespoon olive oil
1 tablespoon butter
2 tablespoons balsamic vinegar
2 tablespoons flour
½ cup apple juice
about ½ cup chicken or vegetable stock
¼ teaspoon fresh or ½ teaspoon dried thyme
2 teaspoons Dijon mustard
1 generous tablespoon redcurrant or cranberry jelly
salt and pepper to taste
Mix together the 2 tbsp cider vinegar and olive oil, and marinate the tenderloin for at least an hour in the fridge.
Peel and quarter the onions, reserving one half of one onion. Core the apples and quarter them, again reserving one half of one apple.
Place the tenderloin in a roasting pan and arrange the apple and onion quarters around it. Pour the marinade over to coat everything. Cook in the oven at about 375℉ or 190℃ (about 170℃ for a fan oven) for about 40 to 50 minutes, turning the apples and onions halfway through.
Meanwhile, finely chop the reserved half onion and half apple. Melt the butter in a medium saucepan and sauté the chopped onion and apple over low to medium heat. You want them to cook slowly so they almost “melt” as they become tender. To do this you need to keep sautéing them over low heat, stirring occasionally, for about half an hour.
When the apple and onion are very soft and have cooked together, turn the heat back up to medium and add the balsamic vinegar. Let it all bubble away for a minute or so.
Sprinkle the flour over top and stir into the apples and onions. Cook for a minute, stirring constantly, just to cook the floury taste away. Gradually add the apple juice, stirring after each addition. Now gradually add the chicken stock, stirring constantly, until you get a nicely textured gravy. (You may need slightly more or less than the half cup.) Stir in the mustard and thyme, and then blend in the cranberry or redcurrant jelly until you have a fairly smooth gravy. Add salt and pepper to taste.
Check that the pork is cooked through, and when it is, slice and serve with the gravy. This is delicious served over mashed potatoes and/or with some broccoli on the side.
Refrigerate any leftovers promptly and save them for:-
Yummy Tenderloin Fajitas
Leftover sliced tenderloin from the first night
1 red onion, peeled and cut in eighths
1 red pepper, de-seeded and sliced
1 yellow pepper, de-seeded and sliced
1 orange pepper, de-seeded and sliced
(It goes without saying you can vary the colours here, you just need 3 peppers!)
1 zucchini, ends removed and sliced in sticks
2 tablespoons olive oil
as much of 1 red chili, seeds removed and finely sliced, as you would like
(My family like it mild, so I add very little, but if you like it hot, go for it!)
large flour tortillas
1 cup of grated cheese (optional)
salsa, sour cream and/or guacamole for garnish
Place the onion, peppers and zucchini in a large roasting dish and drizzle the oil over top. Stir with your hands to coat the veggies with the oil. Bake at about 375℉ or 190℃ (about 170℃ for a fan oven) for about half an hour, stirring halfway through.
When the vegetables are nearly cooked, slice the tenderloin into small strips or pieces and place in a small roasting pan. I like to put about a tablespoon of water in with the pork, cover firmly with aluminum foil and heat gently in a low oven, turning occasionally until warm through – but if you are in a rush you can use a microwave. Just be sure to keep the meat warm once you have heated it.
Serve the tortillas, pork and vegetables in separate warmed dishes so everyone can assemble and wrap their own fajitas. (If you have a warming tray or plate that you can put on the table it really helps.)
Serve grated cheese, if using, salsa, sour cream and/or guacamole on the side.

