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Crockpot Chocolate Lava Cake

crockpot chocolate lava cake - featured image

This easy slow cooker chocolate lava cake features a rich, gooey molten center and fudgy cake edges, all made effortlessly in your crockpot. Perfect for family nights, potlucks, or any occasion when you crave a decadent, hands-off dessert.

Ingredients

Scale
  • 1 cup (120 g) all-purpose flour
  • 2/3 cup (130 g) granulated sugar
  • 1/4 cup (25 g) unsweetened cocoa powder (Dutch-process recommended)
  • 2 teaspoons baking powder
  • 1/4 teaspoon salt
  • 1/2 cup (120 ml) whole milk (or plant-based milk for dairy-free)
  • 1/4 cup (60 ml) vegetable oil or melted butter
  • 1 teaspoon vanilla extract
  • 1 teaspoon instant espresso powder (optional)
  • 3/4 cup (150 g) packed light brown sugar
  • 1/4 cup (25 g) unsweetened cocoa powder
  • 1 3/4 cups (420 ml) boiling water
  • 1 cup (175 g) chocolate chips or chopped chocolate (milk, dark, or semi-sweet; optional for extra decadence)

Instructions

  1. Generously coat the inside of your slow cooker with nonstick spray or butter.
  2. In a medium mixing bowl, whisk together flour, granulated sugar, cocoa powder, baking powder, salt, and espresso powder (if using).
  3. Add milk, vegetable oil or melted butter, and vanilla extract. Stir until just combined; batter will be thick and a little lumpy.
  4. Scrape the batter into the prepared slow cooker and spread into an even layer.
  5. In a small bowl, mix brown sugar and cocoa powder. Sprinkle evenly over the cake batter—do not stir.
  6. Carefully pour boiling water over the top. Again, do not stir. Sprinkle chocolate chips or chunks on top if using.
  7. Cover and cook on HIGH for 2 to 2.5 hours. The top should look set and slightly cracked, with a gooey chocolate sauce underneath.
  8. Turn off the slow cooker and let the cake sit, uncovered, for 10-15 minutes to allow the sauce to thicken.
  9. Scoop out portions with a big spoon, making sure to get plenty of sauce in each serving. Serve warm, optionally topped with ice cream or whipped cream.

Notes

For gluten-free, use a 1:1 gluten-free flour blend. For dairy-free or vegan, use plant-based milk, dairy-free chocolate chips, and coconut oil or vegan butter. Do not stir the lava layer or water into the batter—this creates the molten center. Check for doneness at the 2-hour mark, as slow cookers vary. Serve hot with ice cream or whipped cream for extra decadence. Leftovers can be refrigerated for up to 3 days or frozen for up to 2 months.

Nutrition

Keywords: crockpot chocolate lava cake, slow cooker dessert, molten chocolate cake, easy chocolate cake, gluten-free option, dairy-free option, vegan chocolate cake, kid-friendly dessert, potluck dessert, comfort food