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Blueberry Muffin Cookies with Streusel Topping

Blueberry Muffin Cookies are delightfully soft cookies filled with juicy blueberries and topped with a crumbly streusel. They're not heavy or overly sweet, making them a perfect treat for any time of the day.
Prep Time 20 minutes
Cook Time 15 minutes
Total Time 35 minutes
Course Dessert
Cuisine American

Ingredients
  

For the Cookies

  • 1/2 cup unsalted butter softened
  • 3/4 cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup sour cream
  • 1 cup fresh blueberries

For the Streusel Topping

  • 1/4 cup unsalted butter melted
  • 1/3 cup granulated sugar
  • 1/3 cup brown sugar
  • 1/2 cup all-purpose flour
  • 1/2 teaspoon ground cinnamon

Instructions
 

  • Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.
  • In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy using an electric mixer.
  • Beat in the egg and vanilla extract until well combined.
  • In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.
  • Gradually add the dry ingredients to the butter mixture, alternating with the sour cream, beginning and ending with the dry ingredients. Mix until just combined.
  • Gently fold in the fresh blueberries with a rubber spatula.
  • For the streusel topping, combine the melted butter, granulated sugar, brown sugar, flour, and ground cinnamon in a bowl. Mix until the mixture resembles coarse crumbs.
  • Drop tablespoonfuls of the cookie dough onto the prepared baking sheets, spacing them about 2 inches apart.
  • Sprinkle a generous amount of streusel topping over each cookie.
  • Bake in the preheated oven for 12-15 minutes, or until the edges are lightly golden and the cookies are set.
  • Allow the cookies to cool on the baking sheets for a few minutes before transferring them to a cooling rack to cool completely.
Keyword blueberry cookies with streusel, blueberry muffin cookies, soft blueberry cookies, streusel topping cookies