Lemon coconut meringue pie

Ingredients

• 1 1/4 cups all-purpose flour
• 1/3 cup ground almonds
• 1/4 cup sugar
• 1/4 tsp salt
• 5 Tbsp frozen unsalted butter
• 3 large cold egg yolks
• 1/2 tsp vanilla extract
• 1/2 egg white
• 1 tbsp cold water
• 3 large eggs
• 1 cups sugar
• 2 - 3 lemons: 6 Tbsp juice + 2 Tbsp zest
• 3 Tbsp all-purpose flour
• 2 1/2 egg whites
• 3 Tbsp sugar
• 1/2 tsp lemon juice (instead of 1/4 tsp cream of tartar)
• 1 cup sweetened shredded coconut