Cheesy Apple Quesadilla

1. Dice shallot and cut apple into thin slices. Pieces of apple that are too thick will make it hard for tortillas to stick together. (I actually only use about half of a small apple for the quesadilla and eat the rest as a side dish.)
2. Add butter to a skillet over medium heat. Add the apple slices and diced shallot.
3. Cook for 2 to 3 minutes, or until shallot is brown and apple slices are soft.
4. Place apple and shallot mixture on one tortilla. Lay on the cheese and top with the remaining tortilla.
5. Place the tortilla back on the skillet for around 2 minutes per side, or to the desired crispness.
6. Slice and dip in whatever sauce you like! Mustard, sour cream, or plain yogurt are all very good.