chocolate cake recipie using only these ingredients:

6 tbsp hot cocoa mix
1 stick of butter
a pinch of salt
all purpose flour
white granulated sugar
brown granulated sugar
eggs
baking soda

preferably, the cake recipie shouldn't require a mixer. it should be easy to make by hand.

Here is a simple and delicious chocolate cake recipe using the ingredients you provided:

Ingredients:
- 1 stick of butter
- 6 tbsp hot cocoa mix
- Pinch of salt
- 1 cup all purpose flour
- 1/2 cup white granulated sugar
- 1/2 cup brown granulated sugar
- 2 eggs
- 1 tsp baking soda

Instructions:
1. Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.
2. In a medium saucepan, melt the butter over low heat. Remove from heat and stir in the hot cocoa mix until well combined.
3. In a separate bowl, whisk together the flour, both sugars, and salt.
4. Add the eggs to the butter mixture and mix well.
5. Gradually add the dry ingredients to the wet ingredients, stirring until just combined.
6. In a small bowl, dissolve the baking soda in 1 tsp of warm water, then add it to the batter and mix until fully incorporated.
7. Pour the batter into the prepared cake pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.
8. Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.
9. Serve slices of the delicious homemade chocolate cake and enjoy!