Cardamom Pistachio Butter Mochi Cake
Introduction
This cardamom pistachio butter mochi cake has crisp golden edges, a soft chewy center, and a warm cardamom aroma balanced by coconut, butter, and chopped pistachios.
The base is inspired by Hawai‘i local butter mochi, while the cardamom-pistachio combination gives it an Arabicook twist. Sweet rice flour creates the signature elastic texture, so the finished cake is denser and bouncier than an ordinary wheat-flour cake.
The batter is whisked together, baked in a 9-by-13-inch pan, cooled completely, and cut into small squares.
Why You’ll Love This Recipe
- No mixer, frosting, or syrup is required.
- The texture combines crisp edges with a chewy center.
- It can be prepared a day ahead.
- Small squares make it easy to serve.
Recipe Overview
- Prep time: 20 minutes
- Bake time: 60 to 70 minutes
- Cooling time: At least 2 hours
- Total time: About 3 hours 25 minutes
- Yield: 20 small squares
- Difficulty: Easy
Ingredients for Cardamom Pistachio Butter Mochi Cake
- 16 ounces (454 g) sweet rice flour, such as mochiko
- 1 3/4 cups (350 g) granulated sugar
- 2 teaspoons baking powder
- 3/4 teaspoon fine salt
- 1 teaspoon ground green cardamom
- 4 large eggs
- 1 can full-fat unsweetened coconut milk, about 13.5 ounces (400 ml)
- 1 3/4 cups (420 ml) whole milk
- 1/2 cup (113 g) unsalted butter, melted and cooled slightly
- 1 teaspoon vanilla extract
- 3/4 cup (90 g) raw unsalted pistachios, roughly chopped
- Butter or neutral oil, for greasing the pan
Ingredient Notes
Sweet Rice Flour
Use sweet rice flour, glutinous rice flour, or mochiko. Regular rice flour is not interchangeable because it cannot produce the same chewy structure.
Coconut Milk
Choose full-fat, unsweetened canned coconut milk. Shake or stir it until the cream and liquid are fully blended. Do not use sweetened cream of coconut.
Cardamom and Pistachios
Use green cardamom, not black cardamom. Raw unsalted pistachios work best because they toast during baking. Chop them fairly small for cleaner slices.
Equipment
Use a light-colored 9-by-13-inch metal pan, two bowls, a whisk, a spatula, parchment paper, and a wire rack. An instant-read thermometer is helpful but optional.
Step-by-Step Instructions
1. Prepare the Pan
Heat the oven to 350°F (175°C) with a rack in the center.
Grease the pan lightly. Line the bottom and long sides with parchment, leaving an overhang for lifting the cake later.
2. Mix the Dry Ingredients
Whisk the sweet rice flour, sugar, baking powder, salt, and cardamom in a large bowl. Break up any compacted flour or spice.
3. Mix the Wet Ingredients
In a second bowl, whisk the eggs until uniform. Add the coconut milk, whole milk, melted butter, and vanilla, then whisk again.
A few tiny butter droplets are fine, but there should not be large pools on the surface.
4. Make the Batter
Pour the wet mixture into the dry ingredients. Whisk until completely smooth, scraping the bottom and corners of the bowl.
Fold about two-thirds of the pistachios into the batter.
5. Fill the Pan
Pour the batter into the prepared pan. Tap it gently on the counter to release large air bubbles, then scatter the remaining pistachios over the top.
6. Bake
Bake for 60 to 70 minutes, checking from 55 minutes.
The edges should be deep golden and the center should look set. When the pan is moved gently, the middle may bounce slightly but should not ripple like liquid.
The center should reach at least 160°F (71°C). A toothpick may look slightly tacky because baked mochi remains sticky, but it should not carry wet batter.
If the top browns too quickly, cover it loosely with foil.
7. Cool and Slice
Cool the cake in the pan on a wire rack for at least 2 hours. Three to four hours will give firmer, cleaner slices.
Lift it out with the parchment and cut into 20 squares using a plastic knife or a lightly oiled sharp knife.
Expert Tips
- Weigh the sweet rice flour when possible.
- Stir the coconut milk before using it.
- Whisk until no dry pockets remain.
- Do not judge the center while the cake is hot.
- Keep the pistachio pieces small for neat cutting.
Common Mistakes
Using Regular Rice Flour
It will not create the expected mochi texture.
Underbaking
The surface may brown before the middle sets. Check its movement and temperature, not color alone.
Waiting for a Dry Toothpick
That can lead to dry edges. Slight tackiness is normal.
Slicing Too Early
Warm butter mochi is stickier and harder to cut cleanly.
Variations
For a nut-free version, omit the pistachios and check all packaged ingredients for allergy suitability.
Chopped raw almonds can replace the pistachios. Finely grated orange zest can also be added, but avoid orange juice because extra liquid may change the texture.
Serving Suggestions
Serve the squares at room temperature with black tea, coffee, fresh berries, or orange segments. Small portions suit the rich, chewy texture.
Storage
Cool completely, then refrigerate the squares in an airtight container for up to 3 to 4 days. Place parchment between layers if stacking.
Do not leave this egg-containing dessert unrefrigerated for more than 2 hours, or more than 1 hour above 90°F (32°C).
Reheating
Microwave one refrigerated square for about 8 to 12 seconds, or let it stand at room temperature. Avoid overheating, which can make the center excessively sticky.
Make-Ahead
Bake the cake one day ahead, cool it completely, slice it, and refrigerate it in a covered container. Do not prepare the raw egg batter the night before.
Freezing
Freeze fully cooled squares in a sealed freezer-safe container for up to 2 months for best quality. Wrap individual pieces when you want to thaw only a few.
Thaw overnight in the refrigerator, then warm briefly if desired.
FAQ
What is butter mochi cake?
It is a baked dessert made with sweet rice flour, coconut milk, eggs, butter, and sugar. It is chewier and more elastic than a standard cake.
Is mochiko the same as regular rice flour?
No. Mochiko is sweet rice flour, which becomes sticky and elastic when cooked. Regular rice flour produces a different texture.
Why is my butter mochi gummy?
A chewy, slightly sticky center is normal. A wet center usually means the cake was underbaked, measured inaccurately, or cut too soon.
Can I make it without coconut milk?
Another milk may change both flavor and texture. Full-fat canned coconut milk is recommended here.
Why did my butter mochi turn oily?
The butter may have been too hot, the coconut milk may not have been fully mixed, or the batter may not have been whisked evenly.
Is cardamom pistachio butter mochi traditional?
No. Butter mochi is associated with Hawai‘i local food culture. Cardamom and pistachio are the flavor variation used here.
Can I use a glass baking dish?
Yes, but glass heats differently from metal. Begin checking early and expect the baking time or edge browning to vary.
After cooling, this butter mochi cake should hold neat edges while remaining moist and springy inside. Serve it simply so the coconut, cardamom, butter, and pistachio remain the focus.
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