This chewy golden Trader Joes Mochi Cake Mix Recipe is made with eggs, melted butter, and water and ready in 55 minutes. The crispy top edge shatters slightly when cut to reveal a dense, gooey center. I always keep a box in my pantry for sudden dessert cravings.
What I Learned Making This
I initially thought a boxed cake mix would be foolproof, but the baking time can be surprisingly tricky. I learned that pulling it out too early leaves the center completely liquid, while overbaking ruins the signature chew.
My biggest mistake was skipping the parchment paper on my first attempt. Lining the pan ensures the sticky edges release cleanly every single time.
Jump to RecipeTrader Joes Mochi Cake Mix Recipe Ingredients
- 1 box (425g) Trader Joe’s Hawaiian Mochi Cake Mix
- 1 cup water
- 2 large eggs
- 4 tbsp unsalted butter, melted
- Non-stick baking spray

How To Make Trader Joes Mochi Cake Mix Recipe
- Preheat the oven: Preheat your oven to 350°F and line an 8×8-inch baking pan with parchment paper.
- Mix the wet ingredients: In a medium bowl, whisk together the water, eggs, and melted butter until fully combined.
- Fold in the mix: Pour the dry mix into the bowl and stir gently until just combined with no dry spots remaining.
- Bake the cake: Pour the batter into the prepared pan and bake for 45-50 minutes until the top is deeply golden brown.
- Cool completely: Let the cake rest in the pan for at least 1 hour before slicing to allow the mochi to set.

Recipe Tips
- Grease heavily: Mochi batter is incredibly sticky, so parchment paper and cooking spray are absolutely essential.
- Check the center: The cake is done when a toothpick inserted into the middle comes out mostly clean with a few sticky crumbs.
- Wait to slice: Cutting the cake while hot will result in a messy, gummy texture instead of clean squares.
What To Serve With Trader Joes Mochi Cake
A scoop of vanilla bean ice cream pairs perfectly with the warm, chewy cake. You can also serve it with fresh berries or a light dusting of powdered sugar to balance the sweetness.

How To Store
Store leftover mochi cake in an airtight container at room temperature for up to 3 days. Do not refrigerate it, as the cold air will make the mochi hard and unpleasantly dense.
FAQs
Can I use milk instead of water?
Yes, substituting milk or coconut milk for water adds a richer flavor to the final cake.
Can I make this dairy-free?
You can easily swap the melted butter for melted coconut oil or a neutral vegetable oil.
Why did my cake sink in the middle?
Mochi cakes naturally sink a bit as they cool, but severe sinking means the cake was underbaked.
Nutrition
- Calories: 220 kcal
- Total Fat: 6g
- Saturated Fat: 3g
- Cholesterol: 45mg
- Sodium: 180mg
- Total Carbohydrate: 38g
- Protein: 3g
Try More Recipes:
- Trader Joe’s Pumpkin Pancake Mix Muffins Recipe
- Trader Joe’s Birthday Cake Recipe
- Trader Joes Pancakes Recipe
Trader Joes Mochi Cake Mix Recipe
9
servings5
minutes50
minutes55
minutesChewy, golden Trader Joes Mochi Cake Mix Recipe made with butter, eggs, and water in just 55 minutes. This simple Hawaiian-inspired treat yields a crispy crust and a gooey center for fast weekend baking.
Ingredients
1 box (425g) Trader Joe’s Hawaiian Mochi Cake Mix
1 cup water
2 large eggs
4 tbsp unsalted butter, melted
Non-stick baking spray
Directions
- 1. Preheat the oven: Preheat your oven to 350°F and line an 8×8-inch baking pan with parchment paper.
- 2. Mix the wet ingredients: In a medium bowl, whisk together the water, eggs, and melted butter until fully combined.
- 3. Fold in the mix: Pour the dry mix into the bowl and stir gently until just combined with no dry spots remaining.
- 4. Bake the cake: Pour the batter into the prepared pan and bake for 45-50 minutes until the top is deeply golden brown.
- 5. Cool completely: Let the cake rest in the pan for at least 1 hour before slicing to allow the mochi to set.
