Preheat the oven to 350 degrees F (180 C).
Add the oats, baking powder, cinnamon, ginger, ground cloves, ground nutmeg, salt, and coconut sugar to a large bowl and combine.
Then, add the eggs, pumpkin puree, milk, and vanilla extract into a different bowl and whisk to combine.
Pour the wet ingredients over the dry ingredients and mix everything.
Transfer the oatmeal batter to a greased baking dish, add chopped hazelnuts on top, and bake for 20 to 30 minutes or until golden.
Mix the vegan heavy cream with the coconut condensed milk into a small bowl and set aside. Pour over the oatmeal when serving.