Remove the excess juice from the pumpkin puree by placing a thick layer of paper towel over it.
½ cup Pumpkin puree
Preheat the oven to 350°F, grease, and line a 9X15-inch pan with parchment paper. Set it aside.
Whisk all dry ingredients and set aside.
2 cups All-Purpose flour, 1 tablespoon The warm vanilla spice blend, 3 teaspoon Baking powder
Using a mixer, beat the butter, oil, and two sugars until all mixed.
½ cup Butter, ¼ cup Oil, ½ cup Brown sugar, ½ cup Granulated sugar
Add the yogurt and mix.
¼ cup yogurt
Add the eggs, one at a time, and mix in between. Add vanilla extract.
4 Egg, 1 tablespoon Vanilla extract
Using a spatula, fold in the dry ingredients and mix.
Split the batter into two separate bowls. Add the pumpkin puree into one-half of the batter and mix.
½ cup Pumpkin puree
Add the cocoa powder to the other half of the batter.
¼ cup Dark cocoa powder
Drop a few spoons of the pumpkin batter into the pan. Drop a few spoons of the cocoa batter over the pumpkin batter. Repeat until all the batter is used.
Bake for 40-45 minutes. If the top starts browning too fast, Cover the loaf with aluminum foil and continue baking.
Let cool down in the pan, and then transfer to the cooling rack.
Melt the chocolate in the double boiler, add the butter, and mix.
1 cup Semi-sweet chocolate chips, 1 tablespoon Butter
Let cool down slightly, then pour over the cool cake.