Prep the fruit: If using fresh peaches, pit and slice them. For extra chill, freeze the slices for at least 1 hour.
Peel the banana if not already frozen.
Layer the blender: Add milk first, then yogurt, peaches, banana, vanilla, and any optional add-ins. This helps the blades catch smoothly.
Sweeten lightly: Add honey or maple only if needed. If your peaches are very ripe, you may not need any sweetener at all.
Blend until smooth: Start on low, then increase to high for 30–45 seconds.
If the smoothie is too thick, add a splash more milk. If it’s too thin, add more fruit or a few ice cubes.
Taste and adjust: Check sweetness and texture. A pinch of cinnamon adds warmth, and a squeeze of lemon can brighten the flavor.
Serve immediately: Pour into a chilled glass and enjoy while it’s cold and creamy.