This Crazy Pumpkin Olive Oil Cake is naturally dairy free — no eggs, milk, or butter required. Based on the Depression-era “Crazy Cake” (also called Wacky Cake), it comes together quickly, is moist and warmly spiced, and makes a lovely fall dessert. Top it with Whipped Maple Cream Cheese Frosting for a richer treat, or keep it dairy free with a dusting of confectioner’s sugar or dairy-free whipped topping.

What is “Crazy Cake”?

Crazy Cake dates back to a time when milk, butter, and eggs were scarce. The classic recipe uses no dairy or eggs and can be mixed with minimal equipment — historically, even right in the baking pan. That surprising simplicity is what makes these cakes so handy.

I first made a chocolate version and swapped olive oil for vegetable oil to create a Crazy Chocolate Olive Oil Cake. That inspired this pumpkin version — an easy, seasonal variation that’s useful to have on hand when you want a quick, delicious cake.

Ingredients Needed for Crazy Pumpkin Olive Oil Cake

• Flour – all-purpose flour is used here.
• Granulated sugar – you can try substituting part or all with brown sugar for a deeper flavor.
• Baking soda – the leavener that helps the cake rise.
• Salt – table salt is fine; if using Kosher salt add an extra 1/8 teaspoon.
• Pumpkin pie spice – or make your own with 1 teaspoon cinnamon, 1/2 teaspoon ginger, 1/4 teaspoon cloves, and 1/4 teaspoon nutmeg.
• Apple cider vinegar – reacts with baking soda for lift; white vinegar can substitute but has a sharper flavor.
• Olive oil – a mild olive oil is recommended; you may substitute canola, vegetable, or avocado oil.
• Pumpkin puree – use plain pumpkin puree, not pumpkin pie filling.
• Water – this recipe uses slightly less water than a typical Crazy Cake because pumpkin adds moisture.

Can you really mix it up in the baking pan?

Yes — traditionally you can mix Crazy Cake right in the pan, and I’ve done it. That said, I find it easier to whisk dry ingredients in one bowl, combine wet ingredients in another, then fold them together. It still takes only minutes and no mixer is required.

Using two bowls reduces mess and ensures even mixing, but feel free to follow the traditional one-pan method if you prefer. Either approach yields a tender, moist cake.

How to Make Pumpkin Olive Oil Crazy Cake

Preheat the oven and prepare an 8″ square pan with non-stick spray or parchment. Whisk the dry ingredients together in one bowl. In a second bowl, whisk the apple cider vinegar, olive oil, pumpkin puree, and water until smooth. Combine the wet and dry mixtures and whisk until just blended. Pour batter into the prepared pan and bake until a toothpick comes out clean.

No mixer is needed — a whisk or spatula does the job. Allow the cake to cool before frosting.

How to keep the cake from sticking to the pan?

Two reliable options:

• Use a quality nonstick baking spray and, if desired, smooth it with a silicone brush so it reaches corners.
• Line the pan with parchment, then lightly spray the parchment. This gives extra insurance and is the method I use for layer cakes.

How to Make Whipped Maple Cream Cheese Frosting

This frosting is a lighter, whipped version of classic cream cheese frosting with maple flavor. For best results, use cold heavy cream and cold cream cheese. Start by beating softened butter with a pinch of salt until smooth, then add cold cream cheese and continue to beat. Slowly drizzle in maple syrup (and maple extract if you like). The mixture may look curdled at first; keep beating until it becomes smooth.

Once smooth, add the cold heavy whipping cream and whip until stiff peaks form. The frosting should hold defined trails from the beaters and lift in firm peaks. Spread generously over the cooled cake — there’s plenty for the top and, if desired, the sides.

Other Topping Options

If you prefer non-maple or dairy-free toppings, try these alternatives:

• Whipped Cream Cream Cheese Frosting (use a half batch for this cake).
• Brown Sugar Cinnamon Whipped Cream Cream Cheese Frosting for extra fall spice.
• Plain whipped cream or a non-dairy whipped topping.
• A simple dusting of confectioner’s sugar keeps the cake dairy free.
• A warm caramel drizzle can be a decadent finish for those who want something different.

This pumpkin Crazy Cake requires no eggs, milk, or butter and is a great go-to when you want a quick, flavorful cake without fuss. It’s simple to mix, bakes reliably, and pairs beautifully with light whipped frosting or a dusting of sugar.

Notes and Tips

• If you don’t have pumpkin pie spice, use the substitute spices listed above.
• For easy release: spray the pan, line the bottom with parchment, and lightly spray the parchment. Cool the cake for 10 minutes, run a knife around the edges, then invert onto a paper towel–lined plate before transferring to a cooling rack.
• For casual serving you can cool and frost the cake in the pan.
• Keep the cream cheese and heavy cream cold to ensure the frosting whips to stiff peaks.
• Maple extract is potent — add sparingly and adjust to taste.
• To bake in a round pan, a 9″ round pan works well for this batter.

Enjoy this easy, spiced pumpkin cake whenever you want a simple dessert that’s naturally dairy free. It’s a handy recipe to keep in your repertoire for cozy, last-minute baking.

Crazy Pumpkin Olive Oil Cake

Yield:
8″ cake

Prep Time:
15 minutes

Cook Time:
35 minutes

Total Time:
50 minutes

Crazy Pumpkin Olive Oil Cake is naturally dairy free and easy to make. It yields a moist, warmly spiced cake that pairs beautifully with a light whipped maple cream cheese frosting or a simple dusting of sugar.

Ingredients

For the cake:

• 1 1/2 cups all purpose flour
• 1 cup granulated sugar
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 2 teaspoons pumpkin pie spice
• 1 Tablespoon apple cider vinegar
• 1/3 cup olive oil (or your favorite liquid oil)
• 1 cup pureed pumpkin (not pie filling)
• 1/4 cup water

For the Whipped Maple Cream Cheese Frosting

• 2 Tablespoons unsalted butter, slightly softened
• pinch of salt
• 4 ounces block cream cheese, cold
• 1/4 cup pure maple syrup
• 3/4 cup heavy whipping cream, cold
• 1/8 teaspoon maple extract (optional)

Instructions

Before you start:

1. Spray an 8″ square baking pan with non-stick spray and preheat oven to 350°F.

Make the cake:

1. In a large bowl, whisk together the flour, sugar, baking soda, salt, and pumpkin pie spice until combined.
2. In a medium bowl, whisk together the apple cider vinegar, olive oil, pumpkin puree, and water.
3. Add the pumpkin mixture to the dry ingredients and whisk until just combined.
4. Pour the batter into the prepared pan and smooth the top.
5. Bake 35–40 minutes, or until a toothpick inserted in the center comes out clean. Cool 10 minutes in the pan before removing, or cool completely in the pan if serving directly.

Make the frosting:

1. When the cake is completely cool, beat the softened butter with a pinch of salt until smooth. Add cold cream cheese and beat until combined.
2. Slowly drizzle in the maple syrup (and maple extract if using) while beating. Continue until smooth.
3. Slowly add the cold heavy whipping cream and whip until stiff peaks form and the frosting holds defined trails from the beaters.
4. Spread frosting over the cooled cake. Store in the refrigerator for up to 3 days.

Notes

• If you don’t have pumpkin pie spice, use 1 teaspoon cinnamon, 1/2 teaspoon ground ginger, 1/4 teaspoon ground cloves, and 1/4 teaspoon ground nutmeg.
• For reliable release, spray the pan, line the bottom with parchment, and lightly spray the parchment. After baking, cool 10 minutes, run a knife around the edge, and invert to remove the cake.
• Cold cream cheese and whipping cream are essential to achieve the proper whipped texture for the frosting.
• Maple extract is strong — add sparingly and adjust to taste.
• To bake in a round pan, a 9″ round pan works well for this batter.