I've baked more coffee cakes than I can count, and one thing always matters: balancing the richness and texture between the cake and the topping. After several rounds of testing, this version landed exactly where I wanted it: soft and moist, with enough applesauce and fresh apple to make the flavor stand out and a thick crumb topping that's crisp instead of disappearing into the cake. This isn't a fussy recipe. It requires a few bowls but has a payoff that looks like it came from a bakery case.
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Sweet, moist, crunchy
If you like a classic coffee cake with a crunchy crumb topping and a tender, moist cake underneath, this one won't disappoint. It's the kind of cake that's just as welcome with morning coffee as it is after dinner.
It's an upgraded version of a vintage classic, which was a staple during hard times, when ingredients were hard to come by. This is richer and more flavorful, with eggs, butter and a fantastic streusel topping.
It's different from the popular apple coffee cake (which has sour cream in the batter and less streusel on top), as the applesauce and spices create a different cake crumb and flavor.
Why does applesauce work well in cakes?
It makes this coffee cake exceptionally moist while keeping the flavor balanced rather than overly sweet. So the cake stays soft for days, warm spices give it classic fall flavor, and fresh apple cubes add little bursts of fruit and tartness throughout.
It can also add to the wholesomeness of the cake, as it can substitute some of the fat content in a recipe.
Classic powdered sugar glaze: some of us feel a coffee cake is not complete without a drizzle of this simple glaze. It adds a layer of sweetness (and acid if using lemon juice or apple cider) and rounds up the flavors.
Serving: This is a fantastic cake on its own or with a hot cup of coffee or tea. But it can be dressed up by serving it more restaurant-style, slightly warm with a scoop of vanilla ice cream or whipped cream.
Testing notes
Paula's baking tips that make a difference.
Always use unsweetened applesauce; this is important! I normally use my homemade applesauce, but have made it with store-bought applesauce with great results.
Apple choice actually matters here. Granny Smith holds its shape and adds tartness that cuts the sweetness of the crumb and glaze; Honeycrisp is sweeter and slightly softer when baked. Avoid softer varieties like McIntosh: they'll break down into applesauce territory, and you'll lose the texture you're going for.
Room temperature ingredients when specified. This is key to this cake. Cold dairy can curdle the batter slightly; cold eggs tighten it.
Don't skip the fridge step for the crumb topping. Even 10-15 minutes helps. If your kitchen is warm, this step isn't optional; it might be the difference between a crisp topping and a greasy one.
Press the topping down very lightly. Press too hard and you'll compact the crumbs into a dense layer that won't have that craggy, crumbly texture. You want just enough contact that it doesn't roll off when you move the pan.
Watch it around the 30-minute mark. Ovens vary enough so if the top's already deep golden brown and the walnuts too dark, tent it now rather than waiting for the timer.
Toothpick test in the cake, not the topping. Because the topping is crumbly and won't give you a clean readout the way solid cake does, test in an area where you can reach the batter.
For the glaze, lemon juice gives a sharper contrast to the sweetness; apple juice keeps everything in the same flavor lane. For a thick layer, drizzle it on a completely cooled cake; for a little shine and thin coating, do so while the cake is still slightly warm.
Let it cool before glazing; no exceptions. Glaze poured onto a warm cake will melt into the crumb topping instead of sitting on top of it, and you'll lose the visual and textural contrast that makes the drizzle worth doing.
Don't skip resting the cake before slicing; the streusel needs time to set, or it crumbles off the moment you cut in. And the crumb might clump if cut too soon.
Make ahead: You can make the streusel topping ahead and keep it refrigerated in an airtight container. The whole apple cake can be kept refrigerated for several days or frozen for a month, always well covered.
Crumble topping
- By hand: it's a small amount of streusel and you want it clumpy, so I recommend using a bowl and a fork, your hands, or a pastry cutter.
- Food processor: You can use it if you're making a large quantity, and add the walnuts by hand. But make sure you just pulse a few times! Don't overprocess it into a paste.
Make the topping
The dry ingredients are mixed in a medium bowl, and the butter is added and integrated until crumbly.
Keep it in the refrigerator while preparing the apple cake batter.
It can be made ahead and frozen! Make a large batch and have it ready whenever you need it.
Applesauce batter
This coffee cake doesn't have cake batter layers. But the chopped apple is mixed into it.
Topping
Sprinkle the walnut cinnamon crumble mixture on top. It will cover it completely. You can barely press (very lightly) it so it adheres better.
Baking
Bake according to the instructions on the recipe card. The topping turns golden brown and dry, and it will be a noticeable crumb layer.
Glazing
I love the classic lemon juice glaze as it cuts through the richness and sweetness, but using apple juice or apple cider as the liquid for this icing is also a great idea.
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Applesauce Coffee Cake with Walnut Crumb Topping
Ingredients
Crumb topping:
- 1 ½ cups all-purpose flour
- ½ cup brown sugar, packed
- 2 tablespoons white sugar
- 1 teaspoon ground cinnamon
- ¼ teaspoon salt
- ½ cup unsalted butter, melted and cooled but pourable
- ½ cup roughly chopped walnuts
Cake batter:
- 2 cups all-purpose flour
- 1 ½ teaspoons baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 2 teaspoons apple pie spice mix, see Notes below for alternative
- ½ cup unsalted butter, melted and cooled but pourable
- 2 tablespoons vegetable oil
- ¾ cup brown sugar, packed
- ¼ cup granulated sugar
- 2 large eggs
- ¾ cup unsweetened applesauce
- 1 teaspoon vanilla extract
- 1 medium Granny Smith apple, peeled and cut into small cubes
Vanilla glaze:
- ¾ cup powdered sugar
- 1 ½ tablespoons lemon juice, or apple juice or cider
- ¼ teaspoon vanilla extract
Instructions
- Preheat your oven to 350°F (180°C).
- Grease a 9-inch square baking pan and line it with parchment paper, leaving an overhang on two sides for easy lifting.
Cinnamon crumb topping (streusel):
- In a medium bowl, stir together 1 ½ cups all-purpose flour, ½ cup brown sugar, 2 tablespoons white sugar, 1 teaspoon ground cinnamon, and ¼ teaspoon salt.
- Pour in ½ cup unsalted butter, melted and warm, and stir with a fork until large crumbs form.
- Fold in ½ cup roughly chopped walnuts, then refrigerate the topping while you prepare the cake batter. Don't skip this step!
Applesauce cake batter:
- In a large bowl, whisk together 2 cups all-purpose flour, 1 ½ teaspoons baking powder, ½ teaspoon baking soda, ½ teaspoon salt and 2 teaspoons apple pie spice mix.
- In a separate medium bowl, whisk together ½ cup unsalted butter, melted and cooled to warm, 2 tablespoons vegetable oil, ¾ cup brown sugar, and ¼ cup granulated sugar until smooth.
- Add 2 large eggs, one at a time, whisking well after each addition. Stir in the ¾ cup unsweetened applesauce and 1 teaspoon vanilla extract.
- Pour the wet ingredients into the dry ingredients and fold gently with a spatula until just combined. Avoid overmixing. Fold in the 1 medium Granny Smith apple, peeled and diced. The batter will be thick.
- Spread the applesauce batter evenly into the prepared baking pan. Remove the crumb topping from the refrigerator and sprinkle it evenly over the batter, pressing it down very lightly so it adheres. If necessary, break down large clumps.
- Bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean and the crumb topping is golden brown and crisp. If the topping begins to brown too quickly, loosely tent the pan with aluminum foil after about 30 minutes.
- Let the cake cool completely in the pan on a wire rack. Glaze it right there before lifting and cutting it. Don't glaze until it's completely cool, or the glaze will thin out. Use the parchment to help you remove the whole cake from the pan. Cut and serve.
Powdered sugar glaze:
- Whisk together ¾ cup powdered sugar, 1 ½ tablespoons lemon juice and ¼ teaspoon vanilla extract until smooth and pourable. Add a little more juice or water if needed to reach your desired consistency; it should be like thick honey. Drizzle the glaze over the cooled cake using a spoon or a pouring jar.
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