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Decadent Caramel Apple Sheet Cake with Easy Salted Caramel Frosting

caramel apple sheet cake - featured image

A moist, tender sheet cake featuring juicy apple chunks and a luscious salted caramel frosting that balances sweet and salty flavors perfectly. This quick and easy dessert is perfect for cozy gatherings and year-round celebrations.

Ingredients

Scale
  • 2 ½ cups (312 g) all-purpose flour
  • 2 tsp baking powder
  • 1 tsp baking soda
  • 1 ½ tsp ground cinnamon
  • ½ tsp salt
  • 1 cup (227 g) unsalted butter, melted and slightly cooled
  • 1 ½ cups (300 g) granulated sugar
  • ½ cup (100 g) brown sugar, packed
  • 3 large eggs, room temperature
  • 2 tsp vanilla extract
  • 1 cup (240 ml) buttermilk
  • 3 medium apples (preferably Granny Smith), peeled and diced
  • ½ cup (113 g) unsalted butter, softened (for frosting)
  • 3 cups (360 g) powdered sugar, sifted (for frosting)
  • ½ cup (120 ml) salted caramel sauce (homemade or store-bought)
  • 23 tbsp heavy cream (for frosting consistency)
  • ½ tsp sea salt flakes (for finishing)

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13-inch pan with butter or line with parchment paper.
  2. In a medium bowl, whisk together flour, baking powder, baking soda, cinnamon, and salt. Set aside.
  3. In a large bowl, whisk melted butter with granulated and brown sugar until smooth and glossy.
  4. Beat in eggs one at a time, then stir in vanilla extract until batter is rich and silky.
  5. Add dry flour mixture in three parts, alternating with buttermilk in two parts, starting and ending with flour. Mix gently but thoroughly.
  6. Fold diced apples into the batter gently with a rubber spatula.
  7. Pour batter evenly into prepared pan and spread with spatula.
  8. Bake for 40-45 minutes, checking doneness with a toothpick inserted in the center; it should come out with a few moist crumbs but no wet batter. Cover with foil if top browns too quickly.
  9. Cool cake completely in pan on a wire rack for at least 30 minutes.
  10. For frosting, beat softened butter until creamy. Gradually add sifted powdered sugar, alternating with salted caramel sauce. Add heavy cream 1 tbsp at a time until spreadable consistency is reached.
  11. Spread frosting evenly over cooled cake and sprinkle sea salt flakes on top.
  12. For cleaner slices, refrigerate frosted cake for 30 minutes before cutting.

Notes

Use tart apples like Granny Smith or Braeburn for best texture and flavor. Avoid overmixing the batter to keep the cake tender. If apples seem watery, toss them in a teaspoon of flour before folding in to prevent sogginess. Refrigerate frosted cake for 30 minutes before slicing for cleaner cuts. For dairy-free or gluten-free adaptations, see substitution tips in the recipe.

Nutrition

Keywords: caramel apple cake, sheet cake, salted caramel frosting, fall dessert, easy cake recipe, apple dessert, caramel frosting, holiday dessert