In a bowl, mix together the flour, grated Cheese, oregano and salt.

Add the chopped butter and rub it in with your fingers.

Add enough ketchup as to obtain a pliable dough (similar to cookie dough in consistency).
Knead well, make it into a ball and keep it in the fridge for 20 minutes.

Roll it into a 5 mm thick sheet and cut out the sticks a few I made roundels with a cookie cutter

Put them on a tray covered with baking paper and bake them in a pre-heated oven at 180°C for 15 to 20 minutes or until golden brown.

Serve at room temperature.