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No-Bake Chocolate Oat Slice

This no-bake chocolate oat slice is a dense, fudgy treat made with simple ingredients like oats, cocoa, and honey. It comes together quickly without oven cooking, and sets into a firm, chewy bar with a rich chocolate flavor and satisfying texture. Perfect for a nostalgic, fuss-free dessert or snack.
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Prep Time 10 minutes
Total Time 2 minutes
Servings: 12
Course: Main Course
Cuisine: Australian
Calories: 180
Ingredients Equipment Method Notes

Ingredients
  

  • 200 g dark chocolate high quality, melts smoothly
  • 100 g unsalted butter or coconut oil for dairy-free
  • 2 tablespoons honey or maple syrup
  • 1 teaspoon vanilla extract
  • 2 cups rolled oats old-fashioned preferred
  • optional chopped nuts or dried fruit for added texture

Equipment

  • Mixing bowl
  • Saucepan
  • Spatula
  • Baking dish
  • Parchment paper
  • Sharp knife

Method
 

  1. Line a square baking dish with parchment paper, leaving overhang for easy removal, and set aside.
  2. In a medium saucepan, melt the dark chocolate and butter over low heat, stirring constantly until smooth and glossy. The mixture will start bubbling gently and smell rich and chocolatey.
  3. Remove the saucepan from heat and stir in honey and vanilla extract until well combined. The mixture should be shiny and fragrant.
  4. In a large mixing bowl, combine the rolled oats and optional mix-ins like chopped nuts or dried fruit. Pour the chocolate mixture over the oats and fold gently with a spatula until evenly coated and sticky.
  5. Transfer the mixture into the prepared baking dish. Use the back of a spatula or your hands to press down firmly, spreading it into an even layer. This helps the slice hold together and creates a dense, fudgy texture.
  6. Place the dish in the fridge and chill for at least 2 hours, or overnight. The mixture will firm up and develop a chewy, sliceable consistency.
  7. Once set, lift the slice out of the dish using the parchment overhang. Place on a cutting board and cut into neat squares with a sharp knife. Wipe the knife clean between cuts for clean edges.
  8. Serve immediately, or store in an airtight container in the fridge for up to a week. For softer bites, let the slices sit at room temperature for 10-15 minutes before serving.

Notes

For dairy-free version, replace butter with coconut oil. Feel free to add chopped nuts or dried fruit for extra texture and flavor.