1: Spray your baking pan really well.
2: Preheat the oven to 375°F.
3: In a large bowl, combine all-purpose flour, sugar, cocoa powder, baking powder, baking soda, and sea salt.
4: Add milk, avocado oil, eggs, and vanilla extract to the dry ingredients and mix well.
5: Stir in the hot water until combined.
6: Pour the batter into the prepared baking pan.
7: Bake for 30-35 minutes.
8: Remove from the oven and let cool for 5 minutes before taking them out of the pan.
9: Dust with powdered sugar before serving.