Gather your ingredients: non-fat frozen yogurt and Oreos.
Combine the Non-fat frozen yogurt and Oreos in a blender.
Blend for 30-45 seconds starting on low and going all the way up to high. If you have a tamper use it to combine the ingredients. My blender has a frozen dessert setting so I'm using that.
If you're wondering what a tamper is it's the stick protruding from the top of my blender. Since it's built in you can safely move it around without hitting the blade.
This is what it looks like when done. As you can see it's much thicker than a milkshake.
Serve and enjoy!