Triple-Lemon Blueberry Layer Cake

INGREDIENTS

2 cups

plus 6 tablespoons (290 g all-purpose flour, sifted)

2 tsp

baking powder

1 tsp

salt

3 cups

fresh blueberries

1/2 cup

sour cream

1/2 cup

whole milk

2 tsp

pure vanilla extract

1/2 tsp

pure lemon extract

1 tsp

lemon zest

1 cup

2 sticks(227 g) unsalted butter, softened

1 1/2 cups

white sugar

large eggs (at room temperature)

1 cup

2 sticks(227 g) unsalted butter, softened

2 tsp

lemon zest

5 cups

icing sugar, sifted

2 tbsp

fresh lemon juice

1/4 cup

whipping cream (35% cream)

1/4 tsp

1.25 pure lemon extract

1 pinch

salt

yellow food gel (optional)