Prepare the Apples: Peel and dice the apples into small chunks. Discard the cores and set aside.
Cook the Apples: In a medium saucepan, melt the butter over medium heat. Once melted, add the diced apples, cinnamon, and nutmeg. Stir occasionally and cook for 5-7 minutes until the apples start to soften and release their juices.
Add Sweeteners: Stir in the brown sugar and maple syrup. Let the mixture cook for an additional 5-10 minutes, stirring frequently. The sugar should dissolve and combine with the juices to form a syrupy consistency. Adjust the heat as needed to prevent burning.
Simmer and Adjust: If you want a thicker syrup, allow it to simmer for a little longer. Add water or apple juice if the syrup becomes too thick or if you'd like a thinner consistency.
Finish with Vanilla: Once your syrup has reached your desired consistency, remove it from the heat and stir in the vanilla extract for extra flavor.
Strain (Optional): If you prefer a smooth syrup, strain the mixture to remove any apple chunks and spices. Otherwise, leave the apple pieces in for a chunkier texture.
Serve or Store: Pour the syrup over your favorite dishes, or store it in an airtight container in the refrigerator for up to two weeks.