In a medium nonstick sauté pan, melt butter over medium-high heat. Add apple and sugar, stirring for 2 to 3 minutes. Add rooibos, and cover pan, reducing heat to medium-low. Cook until apples are tender, approximately 10 minutes, stirring occasionally.
Using a slotted spoon, transfer apple pieces to a bowl.
Increase heat to high, and cook remaining liquid until reduced and slightly thickened and syrupy. Add to apples, stirring to blend.
Use immediately, or transfer to a covered container, and refrigerate for up to a day. Warm gently before using.
Recipe by TeaTime Magazine at https://teatimemagazine.com/ginger-cakes-with-rosy-apple-compote/