A fresh and fantastic spinach and grapefruit salad with a unique taste!
Place orange juice, sugar, vinegar, and cinnamon in a saucepan and simmer until it reduces by half, 10 to 15 minutes. Set aside to cool, about 5 minutes.
Whisk vegetable oil into dressing mixture slowly.
Place spinach, mandarin oranges, feta cheese, and grapefruit into a bowl and drizzle with dressing. Serve immediately.
Per Serving: 393 calories; protein 4.1g; carbohydrates 27.6g; fat 30.9g; cholesterol 14mg; sodium 212.5mg.