INGREDIENTS
2
Lemons, zest from large
1
scant cup Rhubarb, small
1
Egg, large
1 tbsp
Lemon juice, freshly squeezed
2 cups
All-purpose flour
2 tsp
Baking powder
1/4 tsp
Baking soda
1/2 tsp
Kosher salt
2 cups
Powdered sugar
1/3 cup
Sugar
2 tsp
Vanilla, pure
1
Vanilla beans scraped from, half
1/2 cup
Butter, unsalted
1/2 cup
Buttermilk
3 tbsp
Half and half