Place cheese, flour, salt and cayenne pepper into the Thermomix bowl and mill 10 sec/speed 10.
Add peppers and cold butter and blend 6 sec/speed 10.
Transfer dough to a floured silpat mat and roll into 2 logs.
Roll one log in the poppy seeds and the other in the sesame seeds. Wrap in baking paper and place into the freezer for 30 minutes.
Meanwhile preheat the oven to 160°C and line 2 large trays with baking paper.
Slice the logs thinly and place on trays, they don't spread very far.
Bake for 20-25 minutes. Let cool on the tray, they will crisp as they cool down.
Serve with anything you like , but drinks is a good start!