Preheat the oven

• Preheat the oven to 175 °C.
• Line a small square baking dish with baking paper.

Mix the dry ingredients

• Combine the flour, cocoa powder and salt in a bowl.

Whisk the wet ingredients

• Whisk the brown sugar with the melted butter.
• Add the egg, egg yolk, honey and vanilla and whisk until smooth.

Make the batter

• Fold the dry ingredients into the wet mixture until just combined.
• Pour the batter into the prepared dish and spread evenly.

Bake the brownies

• Bake until the center is just set.
• Let cool completely in the dish.

Make the frosting

• Warm the heavy cream and pour it over the chocolate chips.
• Stir until smooth and glossy.

Frost and decorate

• Spread the frosting over the cooled brownies.
• Scatter the sprinkles on top, then cut into squares.