Wet a large serrated knife and press it into the dough in 2 or 3 lines, rocking the knife back and forth to open the cuts slightly wider. (glutenfreeandmore.com)
Once layers are cool, level each cake using a large serrated knife. (flourcoveredapron.com)
Gently slice the angel food cake into three layers using a large serrated knife. (howsweeteats.com)