However, if you are like me you don't keep self-rising flour on hand, so it's really four ingredients. Also, I made disks rather than tori with them, to better fit a bison burger.
2 cups plain Greek yogurt
2 cups all-purpose flour (or use self rising and skip the baking powder and salt)
1 Tbsp baking powder
1 tsp salt
Additional flour for kneading / adjusting texture.
Optional: Egg-wash and topping sprinkles. I used a salad sprinkle similar to Johnny's Salad Elegance.
Preheat oven to 350°F (325°F if using a convection oven).
If you aren't using self-rising flour, mix the baking powder and salt into your all-purpose flour.
Mix the yogurt into the flour. After a point it will not mix well, so turn it out onto a floured surface and knead it for a few minutes until everything is well mixed; dust in additional flour if it gets too sticky.
Divide the dough into 6-8 pieces and shape as desired.
Place on non-stick baking sheet and brush with egg-wash and sprinkle with topping mix if you are using it.
Bake for 20-25 minutes.
Cool completely before cutting.