Preheat the oven to 180 degrees celsius, gas mark 4, and grease 12 small Bundt moulds.
Place the flour, ground almonds, sugar, lemon zest, baking powder and salt in a large bowl and whisk to combine
Place the olive oil, milk, egg and almond extract in a smaller bowl, and whisk to combine
Make a well in the centre of the dry ingredients and add the wet ingredients. Whisk until just combined and the batter is smooth.
Pour the batter into the prepared cake pans and bake for 18-20 minutes, or until a toothpick inserted into the thickest part of a cake comes out clean.
Cool in the pan for 5 minutes, then turn the cakes out onto a wire rack to cool completely.
Dust with the icing sugar