Caramel Apple Sheet Cake (Printable Recipe)

Moist apple cake with cinnamon and caramel icing, ideal for cozy fall baking or anytime treats.

# Ingredients You'll Need:

→ Cake

01 - 1 cup unsalted butter
02 - 1 cup water
03 - 2 cups plus 2 tablespoons all-purpose flour
04 - 2 cups granulated sugar
05 - 1/2 teaspoon kosher salt
06 - 1 teaspoon baking soda
07 - 1 teaspoon cinnamon
08 - 1/2 cup sour cream
09 - 2 large eggs
10 - 1 medium apple, diced small or grated (about 1 1/4 cups)

→ Icing

11 - 3 tablespoons whole milk
12 - 1/4 cup unsalted butter
13 - 2 cups powdered sugar
14 - 1/2 teaspoon vanilla extract
15 - 2 tablespoons caramel sauce

# Steps to Follow:

01 - Preheat oven to 350 degrees Fahrenheit and lightly coat a 10×15 inch jelly roll pan with nonstick spray.
02 - In a medium saucepan, bring butter and water to a boil, stirring frequently to avoid burning. Remove from heat and let cool slightly.
03 - In a large bowl, whisk together flour, granulated sugar, salt, baking soda, and cinnamon.
04 - In a separate bowl, whisk together sour cream and eggs until fully combined.
05 - Add the sour cream mixture to the dry ingredients and stir to form a thick batter.
06 - Fold in the diced or grated apples until evenly distributed.
07 - Gradually stir in the cooled melted butter and mix until fully incorporated and batter loosens.
08 - Pour batter into the prepared pan and bake for 25 to 27 minutes, or until the center springs back when lightly touched.
09 - Remove from oven and allow cake to cool until just slightly warm.
10 - Combine butter and milk in a microwave-safe bowl and heat for 45 seconds, then in 15-second intervals until butter is melted. Whisk to combine.
11 - Add powdered sugar, vanilla extract, and caramel sauce to the bowl and whisk until smooth. Adjust consistency with more sugar or milk as needed.
12 - Pour icing over the slightly warm cake and spread evenly. Let set fully before slicing.
13 - Cut into squares and serve.

# Extra Tips:

01 - If using a 9×13 inch baking dish instead of a jelly roll pan, increase baking time by approximately 10 minutes.
02 - The cake can be stored in the refrigerator for up to 5 days when tightly covered.
03 - To freeze, chill iced cake until firm, wrap in two layers of plastic wrap and one of foil, and freeze up to 2 months.