Prep: Preheat oven to 325°F and line a 9x9" baking pan with parchment paper.
Make the fudgy filling - Melt chocolate chunks in a medium saucepan along with the cream, Greek yogurt, and sugar. Once melted and smooth, remove pan from heat and allow to cool slightly.
Make the brownie batter - In a large mixing bowl add the rest of your brownie ingredients and stir together until just combined.
Combine - Pour the cooled chocolate sauce into the brownie batter and whisk together. The batter will be thick.
Bake - Bake brownies for 35-40 minutes at 325°F. A toothpick inserted in the middle that comes out mostly clean will let you know that the brownies are done. Take care not to over-bake, unless you prefer cake-y brownies.
Allow to cool completely before cutting.
Video
Notes
Note: Nutrition information is a rough estimate only; actual values will vary based on the exact ingredients used and amount of recipe prepared.Prep Tips:
Storage - Keep brownies in an airtight container at room temperature for up to 4-5 days. They can also be frozen for up to 2 months.
Substitutions - Sour cream can be used instead of Greek yogurt. Milk (or plant-based milk) can be substituted for the heavy cream.
Variations - If you like nuts in your brownies, you can fold 1/2 cup of chopped pecans or chopped walnuts into the batter right before you spread in the pan.
Cooking Time - If you love gooey brownies, bake for 35 minutes and check for doneness. If you prefer a more cake-y texture, bake for a few more minutes.