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What are custard apples?

Custard apples are heart-shaped or oval-shaped and can weigh up to half a pound!. They have light tan or greenish quilted skin which develops brown patches as the fruit ripens.
The flesh is particularly mellow and custard like and one of the most exotic of the tropical fruits. The central core is also soft but has no flavor. Custard apples are picked before they are fully ripe, so allow 4 to 5 days for firm fruit to ripen or select mature fruit that are dull brownish green in color. Learn more about these uncommon apples!