Mix all ingredients through vanilla in a large bowl with mixer at medium-low speed until well blended.
Stir in apples and ¾ cup pecans (if desired) with a large spoon until well blended.
Bake in 10 inch bundt pan (prepared with cooking spray) at 350 degrees for 35-40 minutes, or until toothpick comes clean.
Cool for about 10 minutes and then flip onto serving plate.
Whisk powdered sugar, softened butter and 3 Tablespoons apple cider until smooth. Add additional Tablespoon of cider if needed to reach pouring consistency.
Pour glaze over cooled cake. Sprinkle with remaining ¼ cup chopped pecans if desired.