Quinoa Salad with Peaches and Pickled Onions

INGREDIENTS

1/2 cup

1/2" pieces chives

1 pint

small cherry tomatoes, small

1/2

bunch Arugula, leaves stems thick

Peaches, cut into 1/2" pieces, large ripe firm

Red onion, medium

1 1/2 cups

Quinoa

Black pepper, Freshly ground

4 tsp

Kosher salt plus more

3 tbsp

Sugar

1/2 cup

Apple cider vinegar

1/4 cup

Olive oil