In a blender, combine the peeled banana, pineapple chunks, pineapple juice, ice cubes, sugar, and coconut extract.

Blend on high speed until all ingredients are well combined and the mixture is smooth.

If the smoothie is too thick, add a splash more pineapple juice to reach your desired consistency.

Pour the smoothie into a glass and garnish with a pineapple slice or a sprinkle of shredded coconut if desired.