Pumpkin Old Fashioned Doughnuts

INGREDIENTS

For the pumpkin spice doughnuts::

3 cups

cake flour, plus more for rolling

2 tsp

baking powder

1 tsp

fine salt

3/4 tsp

ground nutmeg (use less if you don't love nutmeg)

2 tsp

pumpkin pie spice

1/2 cup

granulated sugar

2 tbsp

unsalted butter

large egg yolks

2/3 cup

sour cream or plain yogurt

1/2 cup

pumpkin puree

Canola oil, for frying

For the pumpkin glaze::

4 1/2 cups

powdered sugar, sifted

2 tsp

light corn syrup or golden syrup

1/4 tsp

fine salt

1 tsp

pumpkin pie spice

1/4 cup

pumpkin puree

1/2 tsp

vanilla

1/4 cup

hot water