Measure out the butter and sugar into a mixing bowl. Using a electric beater or wired whisk or stand mixer, cream the butter, sugar until fluffy and light. Also add almond or vanilla extract.
To the creamed butter add salt, plain flour and almond flour. Mix well and bring the dough together. Just add 2-3 tablespoons milk to bring the dough together.
Grease a 8 inch pizza pan or round baking tin generously with butter. Also dust with flour.
Spread the dough evenly in the prepared baking tray. Smooth out the top using a rolling pin or back of a cup.
Using a sharp knife cut the dough into slices of desired shape. Top with sliced almonds as required
Cover and chill the dough for 2 hours.
15 minutes before baking, preheat the oven at 180 C / 350 F.
Place the pan with cookie dough inside the oven and bake for 30-35 minutes or until the top turns golden.
once baked, break the shortbread cookies along the marked lines. Cool and store in airtight container. Serve with tea or milkshake.