INGREDIENTS
1 1/2 cups
flour
1 tsp
baking powder
1/2 tsp
baking soda
1/4 tsp
salt
1/2 cup
butter
1 cup
white sugar
2 tbsp
lemon zest
2 larges
eggs
1 tsp
vanilla extract
2/3 cup
sour cream
3 tbsp
lemon juice
1 1/2 tbsp
poppy seeds
1 1/2 cups
blackberries
1 cup
butter
4 cups
powdered sugar
1 tbsp
cream