Never had such Delicious Chocolate cookies before! The secret of the taste is inside

Recipe ( Ingredients): 140g (0.6cup) Unsalted butter, 100g (0.5 cup) Suger, 2 eggs, 240g (1.85 cup) Cake flour, 3g (1/2 tsp) Baking powder, 30g (4 tbsp) Cocoa powder, White chocolate. Note. 175c ( 350F) bake for 15 minutes