Step 1

Preheat the oven to 350 degrees F and spray mini muffin tins with non-stick cooking spray. In a medium bowl, mix all the dry ingredients for the cakes. Then whisk in the water and oil until smooth. Spoon the batter into 24 muffins tins, filling only 2/3 full.

Step 2

Bake for 12-15 minutes, until a toothpick inserted into the center of each cake comes out clean. Allow the cakes to cool for 3-5 minutes in the pans, then flip them out onto a wire rack to cool completely.

Step 3

While the cakes are cooling, prepare the glaze. Place the butter, water, and cocoa powder in a microwave-safe bowl. Microwave the mixture for 1-2 minutes until warm, them whisk in the vanilla and powdered sugar until smooth. Allow the glaze to cool a little before dipping. Carefully dip the top of each mini cake into the glaze, then place back on the wire rack to set. If the cakes are so tender they start to crumble when you dip them, hold them sideways and spoon the glaze over the tops.

Step 4

Once the glaze has hardened, place the candy melts in a small microwave-safe bowl and microwave in 30 second intervals, stirring in between, until melted, usually 60-90 seconds total. Spoon the melted candy melts into a piping bag with a small tip, or a squirt bottle (or a plastic bag with the tip cut off) and pipe lines over the top of each mini cake. Allow the candy melt lines to harden before moving. Store in an air-tight container until ready to serve.