酥酥 coffee biscuit

1* beat butter and icing sugar till fluffy. 2* add sifted flour and corn flour. 3* add mixed instant coffee and hot water. 4* mix well. place onto hot plate then oven 180 degree for 12-15 min. (can either scope into small balls by spoons or use a 擠花袋 like me to get flowery shape) p.s. something can be placed in onto the balls/flowerys before putting it into oven to look better (chocolate chip, almond, coffee bean....etc) i got none this afternoon... p.s. let it cool for a while to get 酥 after cooking time is up. p.s. it definitely taste better than it looks. !! =)