Low FODMAP Lemon Meringue Cake - FODMAP Everyday

Ingredients

• 1 batch Lemon Curd, (chilled and ready to use)
• 1 1/3 cups (193 g) low FODMAP gluten-free flour, ( such as Bob’s Red Mill 1 to 1 Gluten Free Baking Flour)
• 1 1/4 teaspoons baking powder; (use gluten-free if following a gluten-free diet)
• ¼ teaspoon salt
• 1/2 cup (1 stick; 113 g) unsalted butter, (at room temperature, cut into small pieces)
• Heaping 3/4 cup (151 g) sugar
• 1 teaspoon vanilla extract
• 2 large eggs, (at room temperature)
• 1/2 cup (120 ml) lactose-free whole milk, (at room temperature)
• 1/3 cup (65 g) plus 2 tablespoons sugar, (divided)
• 2 tablespoons water
• 2 large egg whites, (at room temperature)
• 1/4 teaspoon cream of tartar
• 1/2 teaspoon vanilla extract