125 g butter, at room temperature
100 g caster sugar
100 g (wholemeal) flour
100 g old-fashioned rolled oats
1 tsp baking powder
1 tsp ground ginger
3 to 4 Tbsp double/heavy cream
Cream butter and sugar. Combine dry ingredients in a bowl, then stir into the sugar and butter mixture. Finally add the cream and stir lightly until combined.
Form the cookie mixture into small balls (about a heaped teaspoonful each) and place them onto a parchment-covered baking sheet, leaving plenty of room between the cookies, as they spread out during baking.
Bake in a preheated 200 C oven for about 8 minutes, until light golden brown on edges.
Remove from the oven, leave to cool for a few minutes, then transfer onto a metal rack to dry and go crisp.