In a food processor combine flour, red pepper flakes and salt. Pulse to combine.
Add the butter, cheese and thyme. Pulse until a dough forms with visible bits of cheese.
Transfer dough to a bowl and fold in Rice Krispies.
Portion dough onto a wax paper lined baking sheet using a 1 tablespoon scoop.
Preheat oven to 350°F. Line baking sheet with parchment.
Place dough balls 2-inches apart on baking sheet. Using your fingertips slightly flatten each dough ball into a 1½ inch disk. Bake in preheated oven for 15 minutes.
Cool on baking sheet for 2 minutes then transfer cheese wafers to cooling racks.
Store in airtight container. Freeze if not using within 2 days.