Apple and Swiss Chard Crostata

INGREDIENTS

2 cups

spelt flour (or all-purpose flour; see note)

1/2 lb

unsalted butter (2 sticks)

1/4 cup

cane sugar (or white sugar)

1/2 tsp

sea salt or Himalayan salt

1/4 cup

ice water, approximately

1 1/2 lb

apples, such as MacIntosh or Granny Smith, peeled, cored and chopped into 1/2-inch chunks

large leaves of Swiss chard, ribs removed and coarsely chopped

1/2 tsp

orange or lemon zest

1/2 cup

coconut sugar

1 tsp

cinnamon, ground

1/4 cup

arrowroot (you could also use all-purpose flour)

2 tbsp

raisins (optional)

3 tbsp

pine nuts (optional)

1/2 tsp

vanilla extract

1/4 tsp

sea salt or Himalayan salt

1 tbsp

unsalted butter