This ultra-creamy smoothie combines antioxidant-rich blueberries with velvety cashew butter for a protein-packed, naturally sweet breakfast or snack. The cashew butter adds a rich, nutty depth that makes it feel decadent while being dairy-free and nutritious.
For best results, drink immediately. To make ahead, combine all ingredients except ice in a sealed jar and refrigerate for up to 24 hours, then blend just before serving. Store any leftovers in the refrigerator for up to 1 day—stir well before drinking as separation may occur. Substitutions: use peanut butter or almond butter for a different nutty flavor; swap blueberries for mixed berries or cherries; for a vegan version, use dairy-free yogurt and ensure cashew butter is vegan. For a thicker smoothie bowl, reduce liquid by ¼ cup and serve with granola and fresh fruit toppings.