Apple Sharlotka and apple muffins

Apple Cake (or Muffins)

From Stacey Snacks
My Favorite Easy Apple Cake:

1 egg
3/4 cup sugar
1/4 cup olive oil
1 tbsp whole milk or heavy cream
1 tsp bourbon vanilla (or 1/2 tsp of bourbon + 1/2 tsp vanilla)
1 cup flour
1/2 tsp baking soda
1 tsp cinnamon
1/8 tsp nutmeg
2 small apples, peeled and diced
1/2 cup chopped walnuts

Icing:
1/2 cup confectioner's sugar
3 tbsp maple syrup
1 tbsp cold water

Mix the egg, oil, milk and bourbon vanilla in a bowl and gradually add the rest of the ingredients, adding the apples and nuts last. Mix with a wooden spoon.

In an 8" springform pan, cut a piece of round parchment paper for the bottom of the pan, and butter the sides of the pan. (I used a muffin pan and got 10.)

Spread the batter into the pan and bake 45 minutes at 350F.
While the cake is in the oven, make the icing. Mix with a fork in a bowl until it reaches the consistency you like.

Drizzle the icing with a fork while the cake is still warm. (The icing is delicious but they're also good just with a dusting of powdered sugar.)
Let rest in the pan 20 minutes before removing sides.

This cake is delicious warm out of the oven, and also excellent the next day.