Preheat your oven to 350°F. Line an 8X8 inch square pan with parchment paper.
In a medium bowl, whisk together the flour, baking soda, kosher salt, cinnamon, ginger, nutmeg, and cloves. Set aside.
In a large bowl, beat the eggs until well combined. Add the sour cream, oil, pumpkin puree, brown sugar, and vanilla. Mix until smooth and incorporated.
Gradually add the dry ingredients to the wet ingredients. Beat the dry ingredients into the wet mixture until just combined.
Fold in the mini chocolate chips. Do not over mix.
Pour into the parchment lined pan, spread it out evenly.
Position it on the center rack of the oven to ensure even baking, avoiding placement too close to the top or bottom. Bake for 27-32 minutes or until a toothpick comes out clean.
Right after the cake comes out of the oven, sprinkle with an extra ¼ cup mini chocolate chips evenly over the top, the residual heat will melt them. Let cool for 10 minutes in the pan and remove to cool on a wire rack.