Grapefruit Ricotta Cake with Cream Cheese Frosting

INGREDIENTS

1 1/2 cups

cake flour

2 tsp

baking powder

1/2 tsp

salt

2 tbsp

grapefruit zest

1/2 cup

unsalted butter, at room temperature

1 cup

granulated sugar

eggs, at room temperature

1 cup

ricotta cheese

1/4 cup

freshly squeezed grapefruit juice

1 tsp

vanilla extract

6 oz

cream cheese, at room temperature

4 tbsp

unsalted butter, at room temperature

1 cup

powdered sugar

2 tbsp

grapefruit juice

1 tsp

grapefruit zest

salt

grapefruit slices, for garnish, if desired