Saigon Cinnamon Streusel Coffee Cake

INGREDIENTS

1 stick

unsalted butter, at room temperature

1 cup

white sugar

eggs

2 tsp

Spice Islands Pure Vanilla Extract

2 cups

all purpose flour

1 1/2 tsp

baking powder

1/2 tsp

baking soda

1/2 tsp

Spice Islands Sea Salt

1 cup

sour cream

1 3/4 cups

all purpose flour

3/4 cup

brown sugar

1 tsp

Spice Islands Ground Saigon Cinnamon

1 tsp

Spice Islands Sea Salt

1 1/2 sticks

unsalted butter

1 cup

powdered sugar

2 tbsp

whole milk