Step 1

Heat butter and oil in a large saute pan over medium-high heat.

Step 2

Add onion and apple slices and saute for 4-5 minutes, until softened and slightly browned.

Step 3

Meanwhile, season the chicken strips with 2 teaspoons of rosemary, salt and black pepper.

Step 4

Push the onion and apple slices to the sides of the pan and add chicken breast strips to the middle. Brown on both sides, about 6-8 minutes total. (If your pan is too crowded, do this in batches so you can properly brown the chicken.)

Step 5

Add vinegar and remaining teaspoon of rosemary then cover the pan, reduce heat to medium and cook until chicken is cooked through, 3-5 more minutes.

Step 6

Serve chicken and apples with extra pan juices and enjoy!