Whisk together 4 ounces of yogurt and 4 ounces of water for the base. Add more yogurt and reduce the water if you want a creamier treat with more calories.
Pour into mold wells, leaving a generous amount of room for the blueberries.
Add blueberries to each well until the mold is almost filled (the pupsicle will expand as it freezes, plus it’s nice to have a little extra space to protect from spills).
Notes
Measure the depth of the wells in your mold if you want to make multiple flavors at one go. Measuring will also help reduce extra filling.
Clear some flat space in your freezer for your pupsicles to set evenly.
Use a baking sheet or similar under your silicone mold, because you will have a devil of a time moving it when full without some form of support.
If you have different dog-safe fruits or veggies on hand, substitute them in as desired. Dogs won’t mind if you swap out green beans for blueberries, or pumpkin for peanut butter.