01 - Combine the sugar and water in a small saucepan. Heat gently, stirring constantly until the sugar completely dissolves. Remove from heat and let cool to room temperature.
02 - Place the mango, strawberries, cooled simple syrup, and lime juice in a blender or food processor. Blend until completely smooth and no fruit chunks remain.
03 - Taste the mixture and adjust sweetness or acidity by adding more sugar or lime juice as needed. Blend briefly to incorporate any additions.
04 - Pour the blended mixture into a shallow, freezer-safe container. Cover tightly and place in the freezer for 1 hour.
05 - Remove the container from the freezer. Stir the mixture vigorously with a fork to break up any ice crystals that have formed. Return to the freezer immediately.
06 - Continue removing the sorbet from the freezer every 30 minutes and stirring with a fork for 2–3 hours total. The sorbet is ready when it reaches a firm, smooth consistency throughout.
07 - Let the sorbet sit at room temperature for 5–10 minutes before serving to soften slightly for easier scooping. Serve chilled in bowls or as a light dessert.