1. Preheat oven at 375F.
2. On the stove, in a cast iron pan, melt the butter with olive oil (medium).
3. Sprinkle salt and pepper on your meat. Put it in the pan with some thyme and garlic (make sure you don’t burn them). Brown the meat on both sides.
4. Put the pan in the oven for 20 min. Once done, put the meat different plate. Remove all the spices that might have burned. DO NOT disregard the sauce from the pan.
5. Deep fry the plantains

For the sauce:

1. Cut the shallots
2. Melt the sugar in a sauce pan on medium heat. DO NOT step away from it. It can burn very fast.
3. Add the vinegar to it while making circular motion with the pan to mix it. Let the vinegar reduces and it will have a syrup texture to it. Take it off the stove. Put it aside.
4. Put your cast iron back on the stove on medium heat. Add shallots to it. You can add some olive oil if needed.
5. Once the shallots are translucid, add the vinegar-sugar mixture.
6. Add corn starch blended with ½ cup of water, salt and pepper. Stir.
7. Let it simmer to thicken for 2 min.
8. Slice avocado, mango.
9. Put everything on a platter and sprinkle it with some cilantro.