Cucumber, Citrus & Hazelnut Salad

3 oranges - peel and pith removed and thinly sliced

2 grapefruits - peel and pith removed and thinly sliced

1/2 red onion thinly sliced

1/4 English cucumber - thinly sliced

1/4 cup crushed hazelnuts

Salt & Pepper

Fresh Mint (Optional)

Sherry Vinaigrette

Place the citrus slices on a plate, then the onion, then the cucumber  - sprinkle hazelnuts and drizzle vinaigrette. Add mint -  if using.