Ingredients: 90g butter, 200g common flour, 90g fine sugar, 50g salad oil, 20g milk, a little salt, egg 1 piece, and 20-30g cocoa powder.

The practice of butter cookies in microwave oven:

Soften the butter, add one third of the fine sugar and beat until it is greasy and smooth, slightly lighter in color and slightly larger in volume.

Add the beaten egg mixture in three times, each time until the butter is completely mixed, and then add the next time.

Add salad oil and stir evenly; ? Add milk and salt and stir well; ? Adding the remaining fine sugar twice and stirring evenly;

Sift the flour, pour it into the butter, and stir well with a soft scraper.

Put the biscuit paste into a paper bag with a flower opening and squeeze it into a baking tray (oiled paper or tin foil paper).

Put it in a microwave oven and heat it for 6 minutes in the mode of combining microwave and light wave (half microwave and half light wave), and use medium-high fire for 6 minutes without combining mode; ? Then heat it with pure light waves (barbecue written on some microwave ovens) for 6 minutes.

Pour it on a plate and let it cool completely.