Combine all ingredients and pour over the pork. Refrigerate for 24 to 48 hours. Preheat oven to 375 degrees F. In hot saute pan with 2 tablespoons of peanut oil, brown pork loin on all sides. Place it in the oven for 30 to 45 minutes until internal temperature reaches 150 degrees F. Remove pork from the oven; let rest on a rack for 10 minutes. Slice.
Reduce orange juice to 1/3 cup. Combine sugar, ginger, jalapeno, orange zest and rice wine vinegar. Cook in a 1-quart pot until it's a medium-dark amber color. Stir in orange juice, butter and salt. Strain through a sieve and keep warm. Arrange pork on serving platter and drizzle with sauce.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.