This slow cooker matcha white chocolate lava cake is one of those easy, indulgent desserts that feels like it came from a cozy church potluck table, even though it starts with a simple boxed cake mix. The magic is in that one green-flecked mixture you whisk together—white cake mix, matcha powder, eggs, coconut oil, and vanilla—then drizzle over a bed of white chocolate buttons in the slow cooker. As it cooks low and slow, the cake gently sets on top while the white chocolate melts into a rich, gooey pool underneath, giving you all the comfort of a Midwestern dump cake with a little modern twist from the matcha.
Spoon the warm lava cake straight from the slow cooker into bowls so you catch both the tender cake and that puddle of melted white chocolate underneath. It’s lovely on its own, but a scoop of vanilla ice cream or a dollop of lightly sweetened whipped cream really makes it special. A few fresh berries on the side brighten things up, and if you enjoy coffee or hot tea after supper, the gentle earthiness of the matcha pairs especially nicely with a simple black tea or a mild coffee.
Slow Cooker Matcha White Chocolate Lava CakeServings: 6-8
Ingredients
1 (15.25 oz) box white cake mix
2 tablespoons matcha (green tea) powder, culinary grade
3 large eggs, at room temperature
1/2 cup melted coconut oil (measured after melting)
1 cup water
2 teaspoons vanilla extract
1 1/2 cups white chocolate buttons (or white chocolate chips)
1 tablespoon softened butter or additional coconut oil, for greasing the slow cooker
Optional for serving: vanilla ice cream, whipped cream, or fresh berries
Directions
Grease the inside of a 4- to 6-quart slow cooker with the softened butter or a little coconut oil, making sure to coat the bottom and about halfway up the sides so the cake doesn’t stick.
Scatter the white chocolate buttons evenly over the bottom of the greased slow cooker, creating a solid layer that will melt into the lava-like center as the cake cooks.
In a large mixing bowl, whisk together the dry white cake mix and matcha powder until the green tea is evenly distributed with no dark clumps of matcha.
Add the eggs, melted coconut oil, water, and vanilla extract to the bowl. Whisk or beat with a spoon until you have one smooth, pourable mixture with no dry streaks of cake mix remaining.
Holding the bowl over the slow cooker, slowly drizzle this one matcha cake mixture evenly over the white chocolate buttons, covering them completely. Try not to stir; you want the chocolate to stay on the bottom so it can melt into a gooey layer.
Cover the slow cooker with its lid. Cook on LOW for 2 1/2 to 3 hours, or until the edges of the cake are set and lightly springy and the center is mostly set but still a little soft. The white chocolate underneath will remain melted and saucy.
Once done, turn off the slow cooker and let the cake rest, covered, for about 10 minutes to make it easier to scoop while still keeping the lava-like texture.
To serve, spoon down through the cake so you get both the fluffy matcha cake and the melted white chocolate from the bottom in each portion. Enjoy warm with ice cream, whipped cream, or berries if you like.
Variations & Tips
For a milder matcha flavor, reduce the matcha powder to 1 tablespoon; for a deeper color and more pronounced tea flavor, you can increase it slightly, but taste the dry mix first to be sure it isn’t too strong for your crowd. If coconut oil isn’t your favorite, substitute an equal amount of neutral vegetable oil or melted unsalted butter for a more traditional Midwestern flavor. Add a handful of shredded sweetened coconut or chopped macadamia nuts over the white chocolate buttons before drizzling the batter for extra texture. For a slightly less sweet dessert, use a mix of white chocolate buttons and semisweet chocolate chips. If you only have a larger slow cooker, place a ring of crumpled foil under a smaller heat-safe baking dish, grease the dish, add the white chocolate and batter as directed, then cook in that dish inside the slow cooker to keep the cake from spreading too thin. Leftovers can be chilled and gently reheated in the microwave in short bursts; the white chocolate will soften again and give you a second round of lava-like goodness.
