Melt the butter in a 10 inch oven proof skillet while you get the apples ready. Take 2 Tbs butter out and put in a small bowl for the batter. If the butter is melted before the apples are ready, turn the heat down. Put the sliced apples in a bowl, sprinkle with lemon juice and toss, then toss with the sugar and cinnamon. With the heat on medium, add the apples and stir, cooking about 3-4 minutes until the apples are tender.