Keeping the skin on the apples retains their natural flavonoids; pecans and cinnamon are also antioxidant-rich.
Combine apples, zest, juice, cardamom, cinnamon, and salt in a food processor and whirl until smoothly puréed, 3 to 5 minutes, scraping down sides of bowl if necessary. (Bits of peel will be visible.)
Divide among 4 bowls. Top each serving with a dollop of yogurt and some pecans.
Note: Nutritional analysis is per 1/2-cup serving.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.