Mix flour, milk, vinegar, butter, sugar and vanilla together.
Mix the flour to make a smooth dough.
Make 24 small balls and flatten with a fork.
Place six at a time on a microwave baking tray or lightly greased greaseproof paper and cook at 100 per cent for 1 1/2 - 2 1/4 minutes, depending on the size of the cookies.
Give the tray a half turn halfway through the cooking time.
Allow to cool on a wire rack.
Repeat with the remaining mixture.
Switch on the grill also according to your oven's manual.
Key Ingredients: all purpose flour, butter, vinegar, vanilla essence