Grease a madeleine pan with butter and set aside.
Add eggs and allulose to a bowl and whisk together.
Sift in cake flour, Earl Grey tea powder from tea bags, and baking powder.
Add melted unsalted butter and mix gently until smooth.
Pour the batter into the pan and bake in a 180°C oven for 12–15 minutes.
Cool the madeleines after baking.