Like most recipes, remember to adjust the above quantities to your taste preferences and should be considered as basic guidelines.

Melt butter in saucepan.

In saucepan color both sides 1 or 2 minutes per side.

Set aside and keep meat warm in a 200°F preheated oven.

In same saucepan, add all other ingredients and cook for about 5 minutes.

Now add to the saucepan the set aside meat, cover and cook another 5 minutes.

Do not overcook since pork tenderloin with light pink center.

Taste the sauce and add a little more Porto wine if necessary.

Asparagus and or zucchinis are appropriate with this dish, pan fried potatoes or oven baked are also suggested.