INGREDIENTS
12 oz
Blackberries
1/2
Lemon, juice and zest
6
Eggs, whites only
1 1/2 tbsp
Baking powder
6 tbsp
Flour
1 tsp
Salt
2 1/3 cups
Sugar
1
Vanilla bean
1 tsp
Vanilla extract
12 tbsp
Butter, soft unsalted
1 cup
Butter
1 1/3 cups
Milk
2 tbsp
Bourbon