Wash the apples thoroughly and dry them.
Core the apples and slice them into thin wedges.
In a large skillet, melt the butter over medium heat.
Add the apple wedges to the skillet and stir gently.
Sprinkle the brown sugar, cinnamon, nutmeg, and salt over the apples.
Add the lemon juice and vanilla extract.
Cook the apples for about 10-15 minutes, stirring occasionally.
Allow the apples to soften and caramelize.
Taste and adjust sweetness if necessary.
Serve warm, optionally with ice cream or pancakes.