Add 2 inches of oil to a medium saucepan. Bring to medium heat, around 335°F (168°C) - 350°F (177°C).

In a medium mixing bowl, add flour and yogurt. Mix with a spatula until yogurt and flour are fully mixed. Your dough should be sticky.

Once oil has reached the correct temperature, scoop dough using a 1 tbsp cookie scoop. Smooth the surface of the scoop, removing any excess dough. Gently release the dough ball into the heated oil.

Repeat this with remaining dough. Cook donuts until both sides are golden brown, flipping halfway through.

Remove donuts from oil and place onto a plate lined with paper towel to soak up excess oil.

When donuts are no longer too hot to touch, you can roll them in sugar or other donut toppings or leave them plain.