Melting moments cookies

From :

MELTING MOMENTS

Recipe source :Roshini who in fact got it from Good Housekeeping 

Ingredients

Butter-100g

Flour-125g

Sugar-75g

Egg yolk-1

Vanilla extract-1/2 tsp

Cornflakes, crushed-for coating

Method:

• Pre-heat the oven to 180 degrees.
• Beat butter and sugar. Add in the egg yolk& vanilla extract and beat well.
• Add the flour and gently gather it together to form a ball.
• Divide them into 15 portions.
• Roll them on crushed cornflakes and bake for 20-22 mins.
• Cool them on wire racks and store in an air-tight container.