Grease a 5-inch x 8-inch (12 cm x 20 cm) baking dish with butter.
cook the polenta
Place a pot with salted water over high heat and bring to a boil. The pour in the polenta while whisking continuously with a whisk. Bring to a boil, then lower the heat. While whisking non-stop, cook for 5 minutes over low heat.
add the feta and spices
Remove the polenta from the heat. Stir in the butter, then add the feta cheese and Bam Spices (or a teaspoon of the homemade spice mixture. In that case, use parsley, oregano, chives, and rosemary.) Pour the mixture into the prepared baking dish and spread evenly using a spatula. Refrigerate for at least one hour (or overnight).
pan-fry in a pan
Transfer the polenta to a cutting board and cut it into 14 sticks, each approximately 1-inch x 3-inches (2 cm x 10 cm). Place a large pan with oil over high heat. Add the polenta feta fries and pan-fry them until golden-brown, approximately 3 - 4 minutes per side, or 16 minutes in total.