Place steamer basket in a saucepan and add water until just below the basket; bring to boiling. Add peas to steamer basket; cover and steam for 5 minutes. Add apple slices; steam for 2 to 4 minutes more or until apples are just tender.
Meanwhile, in a medium saucepan combine apple cider or juice and cornstarch. Cook and stir until mixture is thickened and bubbly.
Cook for 1 minute more, stirring often. Add the peas and apples, tossing them gently together to evenly coat with sauce. Makes 4 servings.