Choose ripe, juicy fruits: The natural sweetness of the fruit is key to this recipe. The riper and juicier the fruit, the sweeter and more flavorful your marshmallows will be.

Chill thoroughly: Ensure you refrigerate the marshmallow mixture long enough for it to fully set. If the mixture isn't firm enough, it will be difficult to cut into squares.

Use a sharp knife: When cutting the marshmallows, use a sharp knife, and lightly coat it with oil to prevent sticking.

Experiment with flavors: Add different spices or extracts like cinnamon or almond extract for a fun twist.