Gather the ingredients for the recipe.
browned butter sour cream cake
Combine topping ingredients in a food processor or mix well until small crumbs are formed. Transfer to a plate and refrigerate until firm, about 10 minutes.
browned butter sour cream cake
In a small saucepan, melt butter over medium-low heat and cook until the butter is brown, about 5 minutes, then pour into a bowl and freeze until firm but not completely frozen, about 10 minutes.
browned butter sour cream cake
Preheat oven to 350 degrees F.
browned butter sour cream cake
Mix together firm browned butter, sugar, and eggs in a large mixing bowl. Fold in sour cream and vanilla and mix well. Add in flour, baking powder, and salt, and mix until everything is combined.
browned butter sour cream cake
Scrape cake batter into a cake pan and top with chilled topping. Bake for 45 minutes or until the middle is cooked through.
browned butter sour cream cake
Top with powdered sugar and cinnamon before serving.
browned butter sour cream cake
Serve with your favorite coffee drink.
browned butter sour cream cake
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