In a large skillet over medium heat, melt the coconut oil. Add the minced garlic and sauté until it starts to turn golden. Whisking continuously, add the coconut butter and whisk for about 30-60 seconds, until it starts to turn golden. Whisk in the yogurt and coconut milk. Add the vegan Parmesan cheese, salt, and pepper and continue to heat until it starts to bubble, then lower the heat to low, whisking occasionally. For extra smooth and creamy sauce, blend it on high in a blender until smooth.