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Easy One-Bowl Rustic Apple Crisp Cake with Cinnamon Streusel Topping

By Beginnerbakes Test KitchenReviewed by Beginnerbakes Editorial TeamPublished Apr 24, 2026 · Updated Jul 11, 2026
American 60 mins beginner-friendlyeasyone-bowlstep-by-stepquickfruitspicedcomfort-foodmorning-bakeapple cakestreusel topping

This easy one-bowl rustic apple crisp cake blends tender, spiced apple chunks into a moist vanilla batter, topped with a crisp cinnamon streusel. Perfect for a quick breakfast, snack, or beginner-friendly baking project.

Easy One-Bowl Rustic Apple Crisp Cake with Cinnamon Streusel Topping
Prep 15 min
Cook 45 min
Total 60 min
Servings 8
Difficulty easy
Cuisine American

Recipe Details

Prep15 min
Cook45 min
Total60 min
Servings8
Difficultyeasy
CuisineAmerican
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Ingredients

Servings 8
  • 2 large apples (such as Granny Smith or Honeycrisp), peeled, cored, and diced
  • 1 teaspoon lemon juice
  • 1 1/2 cups (190g) all-purpose flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/4 teaspoon salt
  • 1/2 cup (100g) granulated sugar
  • 1/4 cup (50g) packed light brown sugar
  • 1/2 cup (120ml) vegetable oil
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1/2 cup (120ml) buttermilk (or milk with 1/2 teaspoon vinegar, let sit 5 mins)
  • 1/3 cup (40g) all-purpose flour
  • 1/4 cup (50g) packed light brown sugar
  • 1/2 teaspoon ground cinnamon
  • 3 tablespoons (43g) cold unsalted butter, cut into small pieces
BeginnerBakes rustic apple crisp cake ingredients
BeginnerBakes rustic apple crisp cake ingredients

Instructions

  1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour an 8-inch (20cm) square or round cake pan, or line it with parchment paper.
  2. Toss diced apples with lemon juice in a medium bowl to prevent browning. Set aside.
  3. In a large bowl, whisk together flour, baking powder, baking soda, cinnamon, nutmeg, salt, granulated sugar, and brown sugar.
  4. Add vegetable oil, egg, and vanilla extract to the dry ingredients. Pour in the buttermilk.
  5. Gently mix with a wooden spoon or spatula until just combined; small lumps are okay. Avoid overmixing.
  6. Fold diced apples evenly into the batter.
  7. Pour batter into prepared pan and smooth the top.
  8. To make streusel, combine flour, brown sugar, and cinnamon in a small bowl. Add cold butter pieces.
  9. Use fingers or pastry cutter to rub butter into dry ingredients until coarse crumbs form.
  10. Sprinkle streusel topping evenly over batter in the pan.
  11. Bake for 40-45 minutes or until a toothpick inserted into center comes out clean and topping is golden.
  12. Let cake cool in pan on wire rack for at least 15 minutes before slicing.
  13. Serve warm or at room temperature with tea or coffee for a cozy, comforting treat.
Easy One-Bowl Rustic Apple Crisp Cake with Cinnamon Streusel Topping
Easy One-Bowl Rustic Apple Crisp Cake with Cinnamon Streusel Topping

Tips

Equipment Needed

Use the pan or baking dish listed in the recipe, plus mixing bowls, measuring tools, a spatula, and a cooling rack if the recipe bakes in the oven. Line pans with parchment or liners when the batter is delicate so beginners can release the bake cleanly.

Ingredient Prep Notes

Measure the dry and wet ingredients before mixing so the batter or dough comes together smoothly. Keep butter, eggs, dairy, fruit, or chocolate at the temperature described in the recipe because small prep details affect rise and texture.

Oven Note

Preheat fully before baking and use the center rack unless the recipe says otherwise. Start checking near the low end of the baking time and rely on the listed doneness cues instead of color alone.

Easy Upgrade Ideas

Keep upgrades simple: add a light glaze, a sprinkle of spice, citrus zest, chopped nuts, chocolate, or a beginner-friendly topping that matches the base flavor. Add decorative finishes only after the bake cools when frosting, glaze, or drizzle needs to set neatly.

Frequently Asked Questions

Can I make Easy One-Bowl Rustic Apple Crisp Cake with Cinnamon Streusel Topping ahead?
Yes. Bake it ahead, cool it fully, and store it as directed so the texture stays as close to fresh as possible.
How do I know when it is done?
Use the timing as a guide, then check the center with the recipe's doneness cue, such as a clean toothpick, set edges, bubbling filling, or a gently springy top.
Can I change the flavor?
Yes. Keep changes small the first time, such as adding citrus zest, spice, chocolate, nuts, or a simple glaze that matches the recipe.
What should beginners watch most closely?
Measure carefully, avoid overmixing batters or doughs, and let the bake cool long enough before slicing, glazing, or storing.

Ingredient Replacements

  • apples (such as Granny Smith or Honeycrisp): Swap with a similar sweetener in small adjustments because liquid sweeteners can change browning and moisture.
  • lemon juice: Use comparable fruit and keep pieces small so they bake evenly and do not weigh down the batter.
  • (190g) all-purpose flour: Use whole wheat pastry flour for a nuttier bake or a 1:1 gluten-free baking blend if needed, checking texture before baking.
  • baking powder: Use a similar baking ingredient and adjust moisture gradually so the batter or dough keeps the same texture.
  • baking soda: Use a similar baking ingredient and adjust moisture gradually so the batter or dough keeps the same texture.

Storage and Reheating

Cool leftovers before storing. Refrigerate in an airtight container for up to 4 days, or freeze when the ingredients are freezer-friendly.

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