Preheat the oven
to 400°F/200°C/gas 6. Set out about twenty-four
mini-cupcake paper cups on a baking sheet.
Stir
together the flour and baking powder in a medium
bowl. Stir in the raisins.
Beat the butter, sugar,
and 2 teaspoons of the coffee extract in a large
bowl with an electric mixer at medium speed until
creamy.
Add the eggs, one at a time, until just
blended after each addition.
With mixer at low
speed, gradually add the dry ingredients. Drop
heaping teaspoons of the mixture into the baking
cups.
Bake for
12-15
minutes,
or until a toothpick inserted into the centers comes
out clean. Cool the cookies completely on a rack.
Sift the confectioners' sugar into a medium bowl
and add the remaining coffee extract and enough
water to make a soft frosting. Frost the top of each
cookie.