Slice shallot, peel and cube apple and crush garlic.
In pot over medium-low heat, add drizzle of olive oil and saute shallots, garlic and apple 20 minutes, covered.
Let mixture slightly cool then add to blender with 1/2 cup broth and blend until fully combined.
In pot, add pumpkin puree; blended shallot mixture; maple syrup; salt, to taste; pepper, to taste; nutmeg; cinnamon; remaining broth; heavy cream; and thyme, to taste. Bring to low boil then add frozen pierogies. Boil 3 minutes.