01 - Preheat oven to 350°F. Grease and line an 8-inch square baking pan.
02 - In a large bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt until well combined.
03 - Add buttermilk, oil, egg, and vanilla to the dry mixture. Beat until smooth. Pour in hot water and mix until incorporated.
04 - Pour batter into prepared pan. Bake for 25-30 minutes until toothpick inserted comes out clean. Cool completely.
05 - Whip heavy cream with powdered sugar, vanilla, and cream cheese until medium-stiff peaks form. Refrigerate until use.
06 - Break cooled cake into small crumbles using hands or fork.
07 - Fill clean flower pots or dessert cups: add cake crumble layer, spoon creamy filling, top with more cake crumbs.
08 - Generously sprinkle chocolate cookie crumbs over the top layer to resemble garden soil.
09 - Arrange edible flowers, mint leaves, and herb sprigs on top creating a garden appearance.
10 - Refrigerate assembled pots for 30 minutes before serving for optimal texture.