Ingredients
- 2 cups all-purpose flour
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 teaspoon ground cinnamon
- 1/2 teaspoon ground nutmeg
- 3/4 cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 cup sour cream
- 2 medium apples, peeled, cored, and diced
- 1/2 cup all-purpose flour
- 1/2 cup brown sugar, packed
- 1/4 teaspoon salt
- 1/4 cup unsalted butter, cold and cubed
Directions
Preheat the oven to 350°F (175°C) and grease and flour a 9-inch round or square baking pan.
In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg.
In a large bowl, cream together the butter and sugar until light and fluffy, about 3–5 minutes.
Add the eggs one at a time, mixing well after each addition, and stir in the vanilla extract.
Mix in the sour cream until fully combined.
Gradually add the dry ingredients to the wet ingredients, mixing just until combined, and then fold in the diced apples.
In a separate bowl, prepare the streusel by mixing the flour, brown sugar, cinnamon, and salt, then cut in the cold butter until the mixture resembles coarse crumbs.
Pour the batter into the prepared pan, smooth the top, and sprinkle the streusel topping evenly over the batter.
Bake for 40–45 minutes or until a toothpick inserted into the center comes out clean.
Allow the cake to cool in the pan for 10–15 minutes before transferring it to a wire rack to cool completely.
Frequently Asked Questions
How should I properly store my Apple Streusel Coffee Cake to keep it fresh?
Once cooled completely, store your Apple Streusel Coffee Cake in an airtight container at room temperature for up to 3 days. For longer storage, you can wrap individual slices tightly in plastic wrap and freeze them for up to one month; let them thaw on the counter before serving.
Can I substitute the butter in this coffee cake recipe?
While the recipe calls for 3/4 cup of softened unsalted butter for the best texture, you can substitute it with a high-quality vegan butter alternative or shortening if needed. Ensure any substitute is softened to the same degree for proper creaming with the sugar.
What is the best way to tell when the Apple Streusel Coffee Cake is fully baked?
The cake is done after approximately 45 minutes of baking at 350°F (175°C) when a wooden skewer inserted into the center comes out clean or with only a few moist crumbs attached. The edges should also look set and slightly golden brown.
