Creamy mushroom & maple sauce pork medallions

Ingredients

• 1 teaspoon of cornstarch
• 1/4 cup of water
• 1 pork loin
• Salt & pepper, as preferred
• 1 tablespoon of butter
• 1 box (227 g) of white mushrooms (or any other kind of mushroom)
• 1 tablespoon of vegetable oil
• 1/4 cup of maple syrup
• 2 tablespoons of balsamic vinegar
• 1/4 cup country-style cream 15 %
• 2 tablespoons of chives, minced