Rustic Blueberry Muffins Recipe

Ingredients

• 1/2 cup firmly packed brown sugar
• 1/2 cup all-purpose flour
• 1/4 cup (1/2 stick) unsalted butter, softened
• 1/2 cup rolled oats
• 1/4 teaspoon ground cinnamon
• 1/3 cup vegetable shortening
• 1 cup firmly packed brown sugar
• 1 teaspoon pure vanilla extract
• 2 large eggs
• 1 cup full-fat sour cream
• 2 cups all-purpose flour
• 2 teaspoons baking powder
• 1 teaspoon kosher salt
• 1 cup fresh blueberries