Heat a 12" skillet or saute pan to medum-low heat.  Add butter and melt.

Add apples to melted butter, increase heat to medium, and cook- stirring occasionally for 3-5 minutes until softened (they should still have a little bite to them).  If you have larger apple pieces, you can pop a lid on your pan for a few minutes to help steam them to soften a little quicker.

Add brown sugar, maple syrup, cinnamon, and salt.  Continue tocook, stirring often until desired apple softness is reached, about 3-5 minutes.  Longer if needed.

Combine water and cornstarch and mix until smooth, pour into skillet.

Cook for 2-3 more minutes until sauce starts to reduce and thicken.

Remove from heat and enjoy.