Put in a frosting tip. If you don’t have a frosting tip, tape and cut closer to the end of the bag, so the opening is smaller. Published March 14, 2018 at 3264 × 2448 in Pi Pie – gluten-free, vegan, delicious, and covered in Pi Put in a frosting tip. If you don’t have a frosting tip, tape and cut closer to the end of the bag, so the opening is smaller. Continue reading →Put in a frosting tip. If you don’t have a frosting tip, tape and cut closer to the end of the bag, so the opening is smaller.