Add all of the ingredients to the blender and blend until thick, creamy, and smooth (approximately 3 minutes). Scrape down sides of blender as needed.
1 very ripe banana, 6 ounces (170g) non-fat Greek yogurt1, ½ cup (120mL) milk2, 1 teaspoon vanilla extract, ⅛ teaspoon peppermint extract3, 1 handful of spinach
Taste smoothie and add more peppermint extract if necessary. If the smoothie is too thick for you, add some more milk. Smoothie is best served immediately, but will stay good in the refrigerator, covered, for one day.
1 Tablespoon chopped chocolate
Notes
Use any yogurt you like: vanilla or plain Greek yogurt, vanilla or plain yogurt. Non-fat or low fat. If you want to be sure you don't taste the banana, use a vanilla flavored yogurt.
Use any milk you like: cow's (skim, 1%, or 2%), almond, soy, coconut.
Start with ⅛ teaspoon peppermint extract and add more as necessary. This extract is very potent, and you don't want your smoothie to end up tasting like toothpaste. I would not exceed ¼ teaspoon.
If you prefer to omit spinach, you can leave the smoothie white, add a couple drops of green food coloring, or omit peppermint extract and use a few fresh mint leaves.
Nutrition Disclosure
All nutritional values are approximate and provided to the reader as a courtesy. Changing ingredients and/or quantities will alter the estimated nutritional calculations.