In a blender, food processor, or bowl with an immersion blender, add the 1 ripe banana, 2/3 cup pumpkin puree, 1/4 cup cottage cheese, 1/4 cup light olive oil, 2 teaspoons vanilla extract, and 2 teaspoons apple cider vinegar. Blend until the curdled texture of the cottage cheese is smooth. Transfer to a mixing bowl.