In a large skillet, roast 1 cup of cassava flour on low heat. About 5 minutes, or until it is golden brown. Remove immediately and let cool on a plate.
In the same pan, over medium heat, add butter, oil, and bacon. Cook until the bacon is crispy.
Add the onion and garlic, and cook until the onion is golden brown.
Add roasted cassava flour and the other cup of unroasted flour. Mix and cook over high heat.
Stir constantly and cook for 3 minutes.
If it needs salt, add 1/2 teaspoon.
Add chopped parsley, mix and serve.