½teaspooncinnamonincrease to 1-½ teaspoons for a stronger flavor
2cupsfinely chopped peeled apple
2large eggs
1cupgranulated sugar
½cupcanola oil or vegetable oil
½cupsour cream
⅓cupunsweetened applesauce
1 ½teaspoonspure vanilla extract
Brown sugar sauce:
½cupbrown sugarpacked
¼cupunsalted buttercut into pieces
⅓cupheavy cream
Instructions
Crumb topping:
Combine brown sugar, flour, cinnamon, and salt. Add melted butter and stir until well combined. Place in the refrigerator while you continue with the cake.
Cake:
Preheat oven to 350 °F. Grease a 9x13 baking dish.
In a large bowl, combine flour, baking soda, salt, and cinnamon. Add apples and stir until combined.
In a separate bowl, whisk eggs, sugar, oil, sour cream, applesauce, and vanilla.
Pour the wet ingredients into the flour mixture. Use a rubber spatula to stir until well combined, being careful not to overmix. Pour the batter into the prepared baking dish. Remove the crumb topping from the refrigerator and sprinkle it over the top of the cake batter. Bake for 22-27 minutes, until a toothpick inserted into the center comes out clean. Place the pan on a wire rack to cool.
Brown sugar sauce:
In a small saucepan over medium heat, melt butter and brown sugar, whisking constantly. Gradually add the cream. Bring to a simmer, stirring constantly. Remove from heat and cool just slightly so it can thicken. Serve warm sauce over slices of cake.