1
: Preheat oven to 350°F (180°C). Line baking sheets with parchment paper.
2
: Combine evaporated milk and vinegar in a medium bowl. Stir well. Mixture will thicken.
3
: Add mashed bananas, sliced bananas and baking soda to the evaporated milk mixture.
4
: Whisk egg, brown sugar, oil and vanilla in a separate large bowl. Stir in flour and baking powder. Add banana mixture and stir until mixture is well combined. Add chocolate chips.
5
: Drop 2 tbsp (30 mL) dough on prepared baking sheets, about 2” (5 cm) apart. Place a banana chip on top of each cookie (if using).
6
: Bake in preheated oven, 13 to 15 minutes until the edges are lightly golden. Cool cookies on baking sheets for 5 minutes. Transfer cookies to cooling rack. Store cookies loosely covered or in the freezer.