Bake the cookies: Cream butter, brown sugar, and sugar until fluffy. Add eggs and vanilla; mix well. Whisk flour, baking soda, baking powder, and salt separately. Combine dry with wet. Roll dough into balls, flatten slightly. Bake for 10–12 minutes at 175°C until golden around the edges. Cool fully on a wire rack.
Make the cream filling: Beat butter and cream cheese until smooth. Add powdered sugar gradually until fluffy. Mix in vanilla. Chill for 15 minutes to firm up.
Cook the salted caramel: Heat sugar and water without stirring until amber. Whisk in coconut cream and sea salt. Cool until thick and glossy.
Assemble the sandwiches: Pipe or spread cream onto one cookie. Top with another cookie. Drizzle warm salted caramel over the tops so it drips down the sides. Repeat for all cookies.
Notes
Serve slightly chilled so the caramel thickens.
Add a pinch of sea salt flakes on top for drama.
Pair with vanilla ice cream for a cookie-ice-cream sandwich moment.
Stop mixing as soon as dry meets wet for soft cookies.
Let caramel cool slightly to thicken before drizzling.
Chill filled cookies for 10 minutes for clean edges.
Add extra cream filling for extra-thick sandwiches.