Step 1: Combine mixed berries, plain Greek yogurt, maple syrup, vanilla extract, and a pinch of salt in a high-speed blender.
Step 2: Blend until the mixture is completely smooth and creamy. Taste and adjust sweetness as needed. If you prefer a seedless popsicle, you can strain the mixture through a fine-mesh sieve.
Step 3: Carefully pour the berry yogurt mixture into your popsicle molds, leaving about 1/4 inch of space at the top to allow for expansion during freezing. For a visual swirl, you can add a small amount of plain yogurt to the mold first, then the berry mixture, and gently swirl with a skewer.
Step 4: Insert popsicle sticks into the center of each mold. If your molds don’t have built-in stick holders, cover the tops with foil and poke the sticks through to keep them upright.
Step 5: Place the filled molds in the freezer on a level surface. Freeze for at least 4 hours, or preferably overnight, until the popsicles are completely solid.
Step 6: To remove the frozen popsicles, briefly run the molds under warm water for 15-30 seconds, then gently pull on the stick to release. Enjoy your homemade healthy popsicle recipes immediately!