Coffee Cake Muffins | Erin’s Recipes | Umami

Ingredients

• 1/2 cup unsalted butter, melted
• 1 cup granulated sugar
• 2 eggs, room temperature
• 1/2 cup sour cream
• 1/4 cup buttermilk
• 2 teaspoons vanilla extract
• 2 cups all purpose flour
• 1 Tablespoon baking powder
• 1/2 teaspoon salt
• 1/2 cup brown sugar
• 2 teaspoons ground cinnamon
• pinch of salt
• 1/3 cup brown sugar
• 3/4 cup all purpose flour
• 6 Tablespoons butter, melted
• 1 1/2 cups powdered sugar
• 1 teaspoon vanilla extract
• 2-3 Tablespoons milk