After the Rice Kripies have set, cut them into 2X3 rectangle shapes.
Cut your straws into thirds. Insert one straw at the bottom of each rice cereal treat.
Lay a piece of parchment paper on a cookie sheet and set the popsicle treats on to decorate.
Using an electric mixer, beat together butter, confectioners’ sugar, cocoa powder and milk.
Once your buttercream starts to form (ie.: is smooth and forms semi-stiff peaks), add some brown gel food coloring to make the color richer. Mix until completely combined.
Scoop your buttercream into a piping bag with Wilton frosting tip #8 attached.
Frost the top of each rice cereal treat, covering it almost in its entirety: pipe out the bottom so that it looks like it’s “dripping.” You can even add some “drops” if you’d like!
Use an offset spatula to smooth out the chocolate buttercream.
Sprinkle each cereal treat, pressing down gently to ensure the sprinkles don’t fall off.
Serve and enjoy!