Nobody should consume sunflower oil, anyway. And cooking with oils is one of the best ways of not only getting more fat into your diet, but also for adding Wonder Full Keto to your food. Some excellent choices for fats to cook with include: Olive oil (avoid extra virgin for cooking) Tallow Grass-fed butter (not suitable for high-temperature cooking) Coconut oil Goose fat Avocado oil 5. Lather your veg in fat You know what turns broccoli into a delicious snack?