Place the butter and two different sugars in a large bowl. Beat together with a wooden spoon (or hand mixer) until the mixture is soft and creamy.
40 g demerara sugar, 85 g golden caster sugar, 120 g unsalted butter
Add the egg and vanilla bean paste and beat well.
1 medium egg, 1.5 tsp vanilla bean paste
Sift in the flour, oats, baking powder and salt.
175 g plain flour (all-purpose flour), 25 g oats, 0.5 tsp baking powder, pinch of salt
Mix together with a wooden spoon until the mixture starts to come together.
Add the raisins and mix into the dough roughly.
30 g raisins
Form small balls of the dough and place on a lined baking tray.
Bake for 20-25 minutes at 180℃ / 350℉, or until lightly golden.