The best pumpkin sheet cake topped with a chai-spiced brown butter cream cheese frosting — pure fall comfort.
Hello! Pumpkin season is here, and we’re starting it right with a moist pumpkin chai sheet cake. After many trials and tweaks, this version is exactly what I was aiming for: tender, properly risen cake with a rich brown-butter cream cheese frosting scented with chai spices. It took several attempts to perfect, but the final result is worth it.
How to make the pumpkin cake
Many early versions of this cake turned out too dense or under-risen. The main lessons: measure flour carefully, avoid over-mixing once the flour is added, and use the right amount of leavening. Because pumpkin adds extra moisture and weight, this batter benefits from a combination of baking soda and baking powder to give it the lift it needs.
The method is straightforward: whisk the dry ingredients together, combine the wet ingredients with the sugars, then fold the dry into the wet just until incorporated. Over-mixing after the flour goes in will develop gluten and make the cake more like bread instead of tender cake.
How to make the chai brown-butter frosting
This icing combines nutty brown butter with cream cheese for a silky, tangy finish. I add warming spices to mimic chai — it complements the pumpkin perfectly. If you prefer, you can use regular softened butter instead of brown butter, but browning the butter ahead of time and cooling it gives the frosting a deeper, caramel-like flavor.
If you’re not after chai specifically, you can substitute a traditional pumpkin pie spice mix (cinnamon, nutmeg, ginger, cloves, allspice) in the frosting instead.
I hope you love this pumpkin chai sheet cake as much as we do. It’s perfect for gatherings, potlucks, or just because. If you make it, enjoy sharing it with someone — it brightens a day. Love, B
Pumpkin Chai Sheet Cake Recipe
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Equipment
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9×13″ baking pan
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Mixing bowls
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Electric mixer
Ingredients
Pumpkin Cake
- 250 grams all-purpose flour, spooned and leveled
- 1 tsp baking soda
- 2 tsp baking powder
- 1/2 tsp salt
- 2 tsp cinnamon
- 1 tsp nutmeg
- 1 tsp ground cloves
- 1 tsp ground ginger
- 4 large eggs, room temperature
- 200 grams granulated sugar
- 100 grams light brown sugar, lightly packed
- 180 mL canola oil
- 420 grams pumpkin puree
- 2 tsp vanilla
Chai Frosting
- 360 grams powdered sugar, spooned and leveled
- 1 tsp cinnamon
- 1/2 tsp cardamom
- 1/2 tsp nutmeg
- 1/2 tsp ginger
- 1/2 tsp cloves
- 1/4 tsp black pepper
- 1/4 tsp salt
- 113 grams brown butter, softened
- 113 grams cream cheese, softened
- 1 tsp vanilla
Method
Brown Butter
- Melt butter in a light-colored saucepan over medium heat, stirring frequently. Watch for brown speckles and a nutty aroma.
- Remove from heat and transfer to a heatproof bowl to cool to soft room temperature before using in the frosting.
Pumpkin Cake
- Preheat oven to 350°F (177°C) convection. Grease and line a 9×13″ pan.
- Whisk together flour, baking soda, baking powder, salt, and the cake spices; set aside.
- In a large bowl, combine eggs, granulated sugar, brown sugar, oil, pumpkin puree, and vanilla until smooth.
- Fold the dry ingredients into the wet until just combined. Pour into the prepared pan and bake for about 35 minutes, or until a toothpick comes out clean.
- Cool in the pan for at least 30 minutes, then remove and cool completely on a rack before frosting.
Chai Frosting
- Stir the powdered sugar and spices together and set aside.
- Beat the cooled brown butter, cream cheese, and vanilla at medium-high speed until pale and fluffy.
- Reduce speed and gradually add the spiced powdered sugar, then beat for at least 5 minutes until the frosting feels smooth and not grainy.
- Spread the frosting over the cooled cake. Optionally sprinkle crushed ginger cookies or a light dusting of cinnamon before serving.
Notes
- For cleaner slices, chill the frosted cake before cutting.
- Serve slightly chilled or at room temperature for best flavor and texture.