Black and white cookies | Women's Weekly Food

Ingredients

• 90 gram (3 ounces) unsalted butter, softened
• 1/2 cup (55g) caster (superfine) sugar
• 1 egg
• 1 1/4 cup (185g) plain (all-purpose) flour
• 1/4 teaspoon bicarbonate of soda (baking soda)
• 1/3 cup (80ml) buttermilk
• 1 teaspoon vanilla extract
• 1 1/2 cup (240g) icing (confectioners') sugar
• 1 tablespoon glucose syrup
• 2 teaspoon lemon juice
• 1 tablespoon warm water
• 1/4 cup (25g) cocoa powder