Pour the green batter into a small piping bag fit with a small round piping tip. Place the
templates (one template for the top shells, one template for the bottom shells) beneath each silpat mat before piping, then remove them from the pan once you’re done piping. Pipe 10 blueberry-shaped shells using the top blueberry macaron template, and 10 shells using the bottom macaron template. To give your macarons more dimension and definition, let each blueberry rest for 5-10 minutes before piping the next blueberry into each shell.