Mix the flour, sugar, baking powder, sea salt, and butter in a medium-sized bowl.
The mixture will resemble sand in texture.
Add the cream and gather the dough into a ball.
Cover the dough in plastic wrap.
Stick the cookie dough in the fridge for 1-1.5 hours.
Roll the dough between two sheets of parchment paper until it's about 3-4 mm (1/8 inch).
Preheat the oven to 175°C (347°F) fan.
Cut out the cookies with the round cutter.
Place them on a lined baking sheet.
Press the 'BUTTER' stamp into the center of each cookie.
Bake for 9-11 minutes until slightly golden around the edges.
Allow to cool on a wire rack.
Repeat the process with the leftover dough.