Butterscotch Bundt Cake

INGREDIENTS

For the cake::

2 1/4 cups

all-purpose flour

1/2 tsp

baking soda

1/2 tsp

fine salt

1/2 tsp

ground cinnamon

2 sticks

unsalted butter, at room temperature

1 1/2 cups

packed light brown sugar

1/2 cup

granulated sugar

2 tsp

vanilla extract

large eggs, at room temperature

1 cup

sour cream

For the icing::

4 tbsp

unsalted butter

1/2 cup

packed light brown sugar

1/4 cup

heavy cream

1/4 cup

powdered sugar, sifted

1/8 tsp

fine salt