- 1 Granny Smith apple – peeled, cored and sliced
- 2 1/2 tablespoons water
- 1 tablespoon cornstarch
- 1 1/2 tablespoons white sugar
- 1 pinch ground cinnamon, or to taste
- Preheat an oven to 350 degrees F (175 degrees C).
- Spread the apple slices into the bottom of a small baking dish. Whisk the water and cornstarch together in a small bowl; pour over the apple slices and gently stir. Sprinkle the sugar and cinnamon over the apple slices.
- Cook in the preheated oven until the apples are tender, about 15 minutes.