Heat oven to 350°F (175°C); parchment-line sheet.

Mash bananas mostly smooth in bowl; add maple syrup, melted oil, and vanilla.

Fold in coconut, salt, and cinnamon until mixture holds; chill 10 minutes if too wet.

Scoop tablespoons onto sheet; gently press into mounds.

Bake 12–15 minutes until edges lightly golden; cool on rack.