Chobani makes a pumpkin spice blended greek yogurt every fall that can be found in most grocery stores in the US. However, if you can't find it or don't have access to it, you can create your own by combining 1 tablespoon of pumpkin puree with 1 tablespoon of maple syrup, 1/2 teaspoon of pumpkin pie spice and 5 ounces (a little more than half a cup) of plain greek yogurt.