Add the white beans, peanut butter, banana, and 1 tablespoon water or unsweetened almond milk to a food processor. Blend until completely smooth and creamy, stopping to scrape down the sides as needed.
If the mixture is too thick, add additional liquid 1 teaspoon at a time and continue blending until it reaches a thick, smooth, spreadable consistency.
Add the raspberries to a small bowl and mash thoroughly with a fork.
Spoon the peanut butter mixture into a serving bowl and gently swirl the mashed raspberries through the top.
Notes
Refrigerator: Store the dip in an airtight container in the refrigerator for up to 3 days.The raspberry swirl may release a little liquid as it sits, so give everything a good stir before serving.I don't recommend freezing this one since it's so quick to make and you'll get the best creamy texture when it's fresh.